Calculate expected return

petek394

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Joined
Oct 13, 2010
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2
I need a formula for the following:

Year 1 I want to save 500$.
Year 2 I want to increase this saving with 10%
Year 3 I want to increase this saving with 9%
Year 4 I want to increase this saving with 8%
Year 5 I want to increase this saving with 7%
Year 6 I want to increase this saving with 6%
Year 7 I want to increase this saving with 5%
Year 8 I want to increase this saving with 4%
Year 9 I want to increase this saving with 3%
Year 10 I want to increase this saving with 2%
Year 11 I want to increase this saving with 1%
Year 12 I want to maintain previous year's saving

I'm going to have 6% return on my savings each year.

How much will I have saved after 20 years including annual return? :confused:

Thanks!
 

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I normally set up a table for it when I want to find out something like this. This table assumes you earn 6% for the entire year on your annual contribution.

Sheet1

<TABLE style="BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 2pt; PADDING-RIGHT: 2pt; FONT-FAMILY: Calibri,Arial; FONT-SIZE: 11pt" border=1 cellSpacing=0 cellPadding=0><COLGROUP><COL style="WIDTH: 30px; FONT-WEIGHT: bold"><COL style="WIDTH: 34px"><COL style="WIDTH: 34px"><COL style="WIDTH: 86px"><COL style="WIDTH: 86px"><COL style="WIDTH: 67px"><COL style="WIDTH: 74px"><COL style="WIDTH: 64px"><COL style="WIDTH: 87px"></COLGROUP><TBODY><TR style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt; FONT-WEIGHT: bold"><TD></TD><TD>A</TD><TD>B</TD><TD>C</TD><TD>D</TD><TD>E</TD><TD>F</TD><TD>G</TD><TD>H</TD></TR><TR style="HEIGHT: 42px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">1</TD><TD style="TEXT-ALIGN: center">Year</TD><TD style="TEXT-ALIGN: center">%</TD><TD style="TEXT-ALIGN: center">Annual Contribution</TD><TD style="TEXT-ALIGN: center">Beginning Balance</TD><TD style="TEXT-ALIGN: center">Interest</TD><TD style="TEXT-ALIGN: center">Ending Balance</TD><TD style="TEXT-ALIGN: right">6%</TD><TD>Interest Rate</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">2</TD><TD style="TEXT-ALIGN: right">1</TD><TD style="TEXT-ALIGN: right">0</TD><TD style="TEXT-ALIGN: right">500.00 </TD><TD></TD><TD style="TEXT-ALIGN: right">30.00 </TD><TD style="TEXT-ALIGN: right">530.00 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">3</TD><TD style="TEXT-ALIGN: right">2</TD><TD style="TEXT-ALIGN: right">10%</TD><TD style="TEXT-ALIGN: right">550.00 </TD><TD style="TEXT-ALIGN: right">530.00 </TD><TD style="TEXT-ALIGN: right">64.80 </TD><TD style="TEXT-ALIGN: right">1,144.80 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">4</TD><TD style="TEXT-ALIGN: right">3</TD><TD style="TEXT-ALIGN: right">9%</TD><TD style="TEXT-ALIGN: right">599.50 </TD><TD style="TEXT-ALIGN: right">1,144.80 </TD><TD style="TEXT-ALIGN: right">104.66 </TD><TD style="TEXT-ALIGN: right">1,848.96 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">5</TD><TD style="TEXT-ALIGN: right">4</TD><TD style="TEXT-ALIGN: right">8%</TD><TD style="TEXT-ALIGN: right">647.46 </TD><TD style="TEXT-ALIGN: right">1,848.96 </TD><TD style="TEXT-ALIGN: right">149.79 </TD><TD style="TEXT-ALIGN: right">2,646.20 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">6</TD><TD style="TEXT-ALIGN: right">5</TD><TD style="TEXT-ALIGN: right">7%</TD><TD style="TEXT-ALIGN: right">692.78 </TD><TD style="TEXT-ALIGN: right">2,646.20 </TD><TD style="TEXT-ALIGN: right">200.34 </TD><TD style="TEXT-ALIGN: right">3,539.32 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">7</TD><TD style="TEXT-ALIGN: right">6</TD><TD style="TEXT-ALIGN: right">6%</TD><TD style="TEXT-ALIGN: right">734.35 </TD><TD style="TEXT-ALIGN: right">3,539.32 </TD><TD style="TEXT-ALIGN: right">256.42 </TD><TD style="TEXT-ALIGN: right">4,530.09 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">8</TD><TD style="TEXT-ALIGN: right">7</TD><TD style="TEXT-ALIGN: right">5%</TD><TD style="TEXT-ALIGN: right">771.07 </TD><TD style="TEXT-ALIGN: right">4,530.09 </TD><TD style="TEXT-ALIGN: right">318.07 </TD><TD style="TEXT-ALIGN: right">5,619.23 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">9</TD><TD style="TEXT-ALIGN: right">8</TD><TD style="TEXT-ALIGN: right">4%</TD><TD style="TEXT-ALIGN: right">801.91 </TD><TD style="TEXT-ALIGN: right">5,619.23 </TD><TD style="TEXT-ALIGN: right">385.27 </TD><TD style="TEXT-ALIGN: right">6,806.41 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">10</TD><TD style="TEXT-ALIGN: right">9</TD><TD style="TEXT-ALIGN: right">3%</TD><TD style="TEXT-ALIGN: right">825.97 </TD><TD style="TEXT-ALIGN: right">6,806.41 </TD><TD style="TEXT-ALIGN: right">457.94 </TD><TD style="TEXT-ALIGN: right">8,090.32 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">11</TD><TD style="TEXT-ALIGN: right">10</TD><TD style="TEXT-ALIGN: right">2%</TD><TD style="TEXT-ALIGN: right">842.49 </TD><TD style="TEXT-ALIGN: right">8,090.32 </TD><TD style="TEXT-ALIGN: right">535.97 </TD><TD style="TEXT-ALIGN: right">9,468.77 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">12</TD><TD style="TEXT-ALIGN: right">11</TD><TD style="TEXT-ALIGN: right">1%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">9,468.77 </TD><TD style="TEXT-ALIGN: right">619.18 </TD><TD style="TEXT-ALIGN: right">10,938.86 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">13</TD><TD style="TEXT-ALIGN: right">12</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">10,938.86 </TD><TD style="TEXT-ALIGN: right">707.39 </TD><TD style="TEXT-ALIGN: right">12,497.16 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">14</TD><TD style="TEXT-ALIGN: right">13</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">12,497.16 </TD><TD style="TEXT-ALIGN: right">800.88 </TD><TD style="TEXT-ALIGN: right">14,148.95 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">15</TD><TD style="TEXT-ALIGN: right">14</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">14,148.95 </TD><TD style="TEXT-ALIGN: right">899.99 </TD><TD style="TEXT-ALIGN: right">15,899.86 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">16</TD><TD style="TEXT-ALIGN: right">15</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">15,899.86 </TD><TD style="TEXT-ALIGN: right">1,005.05 </TD><TD style="TEXT-ALIGN: right">17,755.81 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">17</TD><TD style="TEXT-ALIGN: right">16</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">17,755.81 </TD><TD style="TEXT-ALIGN: right">1,116.40 </TD><TD style="TEXT-ALIGN: right">19,723.13 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">18</TD><TD style="TEXT-ALIGN: right">17</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">19,723.13 </TD><TD style="TEXT-ALIGN: right">1,234.44 </TD><TD style="TEXT-ALIGN: right">21,808.48 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">19</TD><TD style="TEXT-ALIGN: right">18</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">21,808.48 </TD><TD style="TEXT-ALIGN: right">1,359.56 </TD><TD style="TEXT-ALIGN: right">24,018.96 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">20</TD><TD style="TEXT-ALIGN: right">19</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">24,018.96 </TD><TD style="TEXT-ALIGN: right">1,492.19 </TD><TD style="TEXT-ALIGN: right">26,362.06 </TD><TD></TD><TD></TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">21</TD><TD style="TEXT-ALIGN: right">20</TD><TD style="TEXT-ALIGN: right">0%</TD><TD style="TEXT-ALIGN: right">850.91 </TD><TD style="TEXT-ALIGN: right">26,362.06 </TD><TD style="TEXT-ALIGN: right">1,632.78 </TD><TD style="TEXT-ALIGN: right">28,845.75 </TD><TD></TD><TD></TD></TR></TBODY></TABLE>
<TABLE style="BORDER-BOTTOM-STYLE: groove; BORDER-BOTTOM-COLOR: #00ff00; BORDER-RIGHT-STYLE: groove; BACKGROUND-COLOR: #fffcf9; BORDER-TOP-COLOR: #00ff00; FONT-FAMILY: Arial; BORDER-TOP-STYLE: groove; COLOR: #000000; BORDER-RIGHT-COLOR: #00ff00; FONT-SIZE: 10pt; BORDER-LEFT-STYLE: groove; BORDER-LEFT-COLOR: #00ff00"><TBODY><TR><TD>Spreadsheet Formulas</TD></TR><TR><TD><TABLE style="FONT-FAMILY: Arial; FONT-SIZE: 9pt" border=1 cellSpacing=0 cellPadding=2><TBODY><TR style="BACKGROUND-COLOR: #cacaca; FONT-SIZE: 10pt"><TD>Cell</TD><TD>Formula</TD></TR><TR><TD>E2</TD><TD>=(C2+D2)*$G$1</TD></TR><TR><TD>F2</TD><TD>=C2+E2</TD></TR><TR><TD>C3</TD><TD>=C2*B3+C2</TD></TR><TR><TD>D3</TD><TD>=F2</TD></TR><TR><TD>E3</TD><TD>=(C3+D3)*$G$1</TD></TR><TR><TD>F3</TD><TD>=C3+D3+E3</TD></TR><TR><TD>C4</TD><TD>=C3*B4+C3</TD></TR><TR><TD>D4</TD><TD>=F3</TD></TR><TR><TD>E4</TD><TD>=(C4+D4)*$G$1</TD></TR><TR><TD>F4</TD><TD>=C4+D4+E4</TD></TR><TR><TD>C5</TD><TD>=C4*B5+C4</TD></TR><TR><TD>D5</TD><TD>=F4</TD></TR><TR><TD>E5</TD><TD>=(C5+D5)*$G$1</TD></TR><TR><TD>F5</TD><TD>=C5+D5+E5</TD></TR><TR><TD>C6</TD><TD>=C5*B6+C5</TD></TR><TR><TD>D6</TD><TD>=F5</TD></TR><TR><TD>E6</TD><TD>=(C6+D6)*$G$1</TD></TR><TR><TD>F6</TD><TD>=C6+D6+E6</TD></TR><TR><TD>C7</TD><TD>=C6*B7+C6</TD></TR><TR><TD>D7</TD><TD>=F6</TD></TR><TR><TD>E7</TD><TD>=(C7+D7)*$G$1</TD></TR><TR><TD>F7</TD><TD>=C7+D7+E7</TD></TR><TR><TD>C8</TD><TD>=C7*B8+C7</TD></TR><TR><TD>D8</TD><TD>=F7</TD></TR><TR><TD>E8</TD><TD>=(C8+D8)*$G$1</TD></TR><TR><TD>F8</TD><TD>=C8+D8+E8</TD></TR><TR><TD>C9</TD><TD>=C8*B9+C8</TD></TR><TR><TD>D9</TD><TD>=F8</TD></TR><TR><TD>E9</TD><TD>=(C9+D9)*$G$1</TD></TR><TR><TD>F9</TD><TD>=C9+D9+E9</TD></TR><TR><TD>C10</TD><TD>=C9*B10+C9</TD></TR><TR><TD>D10</TD><TD>=F9</TD></TR><TR><TD>E10</TD><TD>=(C10+D10)*$G$1</TD></TR><TR><TD>F10</TD><TD>=C10+D10+E10</TD></TR><TR><TD>C11</TD><TD>=C10*B11+C10</TD></TR><TR><TD>D11</TD><TD>=F10</TD></TR><TR><TD>E11</TD><TD>=(C11+D11)*$G$1</TD></TR><TR><TD>F11</TD><TD>=C11+D11+E11</TD></TR><TR><TD>C12</TD><TD>=C11*B12+C11</TD></TR><TR><TD>D12</TD><TD>=F11</TD></TR><TR><TD>E12</TD><TD>=(C12+D12)*$G$1</TD></TR><TR><TD>F12</TD><TD>=C12+D12+E12</TD></TR><TR><TD>C13</TD><TD>=C12*B13+C12</TD></TR><TR><TD>D13</TD><TD>=F12</TD></TR><TR><TD>E13</TD><TD>=(C13+D13)*$G$1</TD></TR><TR><TD>F13</TD><TD>=C13+D13+E13</TD></TR><TR><TD>C14</TD><TD>=C13*B14+C13</TD></TR><TR><TD>D14</TD><TD>=F13</TD></TR><TR><TD>E14</TD><TD>=(C14+D14)*$G$1</TD></TR><TR><TD>F14</TD><TD>=C14+D14+E14</TD></TR><TR><TD>C15</TD><TD>=C14*B15+C14</TD></TR><TR><TD>D15</TD><TD>=F14</TD></TR><TR><TD>E15</TD><TD>=(C15+D15)*$G$1</TD></TR><TR><TD>F15</TD><TD>=C15+D15+E15</TD></TR><TR><TD>C16</TD><TD>=C15*B16+C15</TD></TR><TR><TD>D16</TD><TD>=F15</TD></TR><TR><TD>E16</TD><TD>=(C16+D16)*$G$1</TD></TR><TR><TD>F16</TD><TD>=C16+D16+E16</TD></TR><TR><TD>C17</TD><TD>=C16*B17+C16</TD></TR><TR><TD>D17</TD><TD>=F16</TD></TR><TR><TD>E17</TD><TD>=(C17+D17)*$G$1</TD></TR><TR><TD>F17</TD><TD>=C17+D17+E17</TD></TR><TR><TD>C18</TD><TD>=C17*B18+C17</TD></TR><TR><TD>D18</TD><TD>=F17</TD></TR><TR><TD>E18</TD><TD>=(C18+D18)*$G$1</TD></TR><TR><TD>F18</TD><TD>=C18+D18+E18</TD></TR><TR><TD>C19</TD><TD>=C18*B19+C18</TD></TR><TR><TD>D19</TD><TD>=F18</TD></TR><TR><TD>E19</TD><TD>=(C19+D19)*$G$1</TD></TR><TR><TD>F19</TD><TD>=C19+D19+E19</TD></TR><TR><TD>C20</TD><TD>=C19*B20+C19</TD></TR><TR><TD>D20</TD><TD>=F19</TD></TR><TR><TD>E20</TD><TD>=(C20+D20)*$G$1</TD></TR><TR><TD>F20</TD><TD>=C20+D20+E20</TD></TR><TR><TD>C21</TD><TD>=C20*B21+C20</TD></TR><TR><TD>D21</TD><TD>=F20</TD></TR><TR><TD>E21</TD><TD>=(C21+D21)*$G$1</TD></TR><TR><TD>F21</TD><TD>=C21+D21+E21</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>

Good luck!
 
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