2410% is the change from 20 to 502
Calculation steps:
[( 502 - 20 ) ÷ 20] x 100 = 2410%
Formula
Percentage change = [(502 - 20) / 20] x 100
Subtract the new number by the original number
502 - 20 = 482
482 ÷ 20 = 24.1
24.1 x 100 = 2410%
Example