87.43% is the change from 501 to 939
Calculation steps:
[( 939 - 501 ) ÷ 501] x 100 = 87.43%
Formula
Percentage change = [(939 - 501) / 501] x 100
Subtract the new number by the original number
939 - 501 = 438
438 ÷ 501 = 0.874251497005988
0.874251497005988 x 100 = 87.43%