87.25% is the change from 502 to 940
Calculation steps:
[( 940 - 502 ) ÷ 502] x 100 = 87.25%
Formula
Percentage change = [(940 - 502) / 502] x 100
Subtract the new number by the original number
940 - 502 = 438
438 ÷ 502 = 0.8725099601593626
0.8725099601593626 x 100 = 87.25%