3340% is the change from 15 to 516
Calculation steps:
[( 516 - 15 ) ÷ 15] x 100 = 3340%
Formula
Percentage change = [(516 - 15) / 15] x 100
Subtract the new number by the original number
516 - 15 = 501
501 ÷ 15 = 33.4
33.4 x 100 = 3340%
Example