i dont see what the problem is...
Thanks for your replies
DRY could be any value, in this instance its 69. i worked out the answer by
using a calculator, excel and in vba, but the same formula run through BASIC
doesnt give me the same result.
but, i think the problem is with the old program because, i wrote another
basic program with the same formula, same value for DRY and my reults match..
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