312.8% is the change from 125 to 516
Calculation steps:
[( 516 - 125 ) ÷ 125] x 100 = 312.8%
Formula
Percentage change = [(516 - 125) / 125] x 100
Subtract the new number by the original number
516 - 125 = 391
391 ÷ 125 = 3.128
3.128 x 100 = 312.8%
Example