12900% is the change from 4 to 520
Calculation steps:
[( 520 - 4 ) ÷ 4] x 100 = 12900%
Formula
Percentage change = [(520 - 4) / 4] x 100
Subtract the new number by the original number
520 - 4 = 516
516 ÷ 4 = 129
129 x 100 = 12900%
Example