Using Variables in Straight Table

[#1]

Hi folks,
i have the enclosed straight table, each ratio(row) calculated by s varibale (i have around 100 ratio)

Ratio Expression

A VarA

B VarB

C VarC

VarA= sum( {<N={A}Month={'$(vMaxMonth)'}>} V)
VarB= sum( {<N={B}>} V)
VarC= sum( {<N={C}Month={'$(vMinMonth)'}>} V)

i put the following expression $(VarA) works great but i have 100+ ratios ( i try to avoid using IF)

any ideas ?????