812.5% is the change from 56 to 511
Calculation steps:
[( 511 - 56 ) ÷ 56] x 100 = 812.5%
Formula
Percentage change = [(511 - 56) / 56] x 100
Subtract the new number by the original number
511 - 56 = 455
455 ÷ 56 = 8.125
8.125 x 100 = 812.5%
Example