1516.13% is the change from 31 to 501
Calculation steps:
[( 501 - 31 ) ÷ 31] x 100 = 1516.13%
Formula
Percentage change = [(501 - 31) / 31] x 100
Subtract the new number by the original number
501 - 31 = 470
470 ÷ 31 = 15.161290322580646
15.161290322580646 x 100 = 1516.13%