Formula Help

[ForeverUnited]

Hi.

I have the following three formulas:

=B36+(99*B45)


=(B37+B52)


=B38+((99*B45)*52)


And I would like to change each of them so that

First one: from the result of the current formula, deduct the value of B49/4

Second one: from the result of the current formula, deduct the value of B49

Third one: from the result of the current formula, deduct the value of B49/12

Thanks in advance for the help guys, I know this is simple but I just can't work out where the brackets should be!

 

[mole999]

=(B36+(99*B45))-(b49/4)
=(B37+B52)-B49
=(B38+((99*B45)*52))-(b49/12)

PEDMAS or BODMAS