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Program Quickie
Here we begin a new feature, somewhat patterned after "MAD" magazine's famous "various places around the magazine". We hope PROGRAM QUICKIES will provide some help with short little programs for small functions that you may not have thought about -- or may not have even needed -- until now!)
One of the things it is always helpful to be able to find is the percent change (formally, the delta percent) of two numbers. here is a short little program that does just this:
10 INPUT "OLD NUMBER";X1 20 INPUT "NEW NUMBER";X2 30 DP=((X2-X1)/X1)*100 40 PRINTUSING "###.##";DP;: PRINT "% CHANGE"
