windows 7 - Math on batch (win) -

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I am developing a CMD batch, I want to do some math in it. This formula: (x + 1) 100: y

in batch, x =% x%, and y =% y% . I know how to define the variable now, how can this calculate the batch? (Windows CMD)

Do I need some extra?

(I need that for windows XP users are available in 7.)

The set command supports a limited number of calculations. In your case, you want: 

  set / a result = (100 * x) / y

play set /? to see supported documents. The / a switch also allows automatic variable adoption, so you can use x instead of x x .


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