Ok, so it's hard to follow what ranges and references you're using in your formula. Here's a sample of what i did to show how the formula works:
[TABLE="width: 691"]
<tbody>[TR]
[TD][TABLE="width: 691"]
<tbody>[TR]
[TD]A1[/TD]
[TD]B[/TD]
[TD]C[/TD]
[TD]D[/TD]
[TD]E[/TD]
[TD]F[/TD]
[TD]G[/TD]
[TD]H[/TD]
[TD]I[/TD]
[TD]J[/TD]
[/TR]
[TR]
[TD="align: right"]2[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]Validation Test[/TD]
[TD][/TD]
[TD][/TD]
[TD]Test data[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]3[/TD]
[TD]Mar[/TD]
[TD][/TD]
[TD]Jan[/TD]
[TD="align: right"]1[/TD]
[TD="align: right"]0[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]4[/TD]
[TD][/TD]
[TD][/TD]
[TD]Feb[/TD]
[TD="align: right"]2[/TD]
[TD="align: right"]0[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]5[/TD]
[TD][/TD]
[TD][/TD]
[TD]Mar[/TD]
[TD="align: right"]3[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]6[/TD]
[TD][/TD]
[TD][/TD]
[TD]Apr[/TD]
[TD="align: right"]4[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]7[/TD]
[TD][/TD]
[TD][/TD]
[TD]May[/TD]
[TD="align: right"]5[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]8[/TD]
[TD][/TD]
[TD][/TD]
[TD]Jun[/TD]
[TD="align: right"]6[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]9[/TD]
[TD][/TD]
[TD][/TD]
[TD]Jul[/TD]
[TD="align: right"]7[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]10[/TD]
[TD][/TD]
[TD][/TD]
[TD]Aug[/TD]
[TD="align: right"]8[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]11[/TD]
[TD][/TD]
[TD][/TD]
[TD]Sep[/TD]
[TD="align: right"]9[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]12[/TD]
[TD][/TD]
[TD][/TD]
[TD]Oct[/TD]
[TD="align: right"]10[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]13[/TD]
[TD][/TD]
[TD][/TD]
[TD]Nov[/TD]
[TD="align: right"]11[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]14[/TD]
[TD][/TD]
[TD][/TD]
[TD]Dec[/TD]
[TD="align: right"]12[/TD]
[TD="align: right"]60[/TD]
[TD][/TD]
[TD][/TD]
[TD="align: right"]5[/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]15[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]
[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
</tbody>[/TABLE]
The formula is: =IF(E3<Vlookup($b$3,$d$3:$E$14,2,false),0,Sum($i$3:$i$14))<vlookup($b$3,$d$3:$e$14,2,false),0,sum($i$3:$i$14))
Highlighted in red is what was added today.
=IF(BD3='Market Input'!$J$1,IF($I4="Other - Explain in Comments",((AD4-$AC4)/$AC4)*P4,IF(AP4>0,((P4*AP4*((AD4-$BB4)/$BB4))+(((VLOOKUP($C4,'Market Input'!$G:$AL,BD$1,FALSE)-$BB4)/$BB4)*P4*(1-AP4))),((VLOOKUP($C4,'Market Input'!$G:$AL,BD$1,FALSE)-$BB4)/$BB4)*P4)),0)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00
these values are already there for referencing other formulas.
Again when the selector selects a month have that month and future month present data in the cells.
and previous month(s) read zero
</vlookup($b$3,$d$3:$e$14,2,false),0,sum($i$3:$i$14))