Expressions in Maya
Nice tid bit help with changing values across several channels (highlight multiple boxes and do this):
In the channel box, you can change the current value with the following:
Type +=n to add
Type -=n to subtract
Type *=n to multiply
Type /=n to divide
% as a suffix indicates a percentage-based operation (For example, +=10% adds 10% of the current value to each selected value).
If you’re interesting in the post I found this, go to:Maya – Numeric expressions in the Channel Box