901.96% is the change from 51 to 511
Calculation steps:
[( 511 - 51 ) ÷ 51] x 100 = 901.96%
Formula
Percentage change = [(511 - 51) / 51] x 100
Subtract the new number by the original number
511 - 51 = 460
460 ÷ 51 = 9.019607843137255
9.019607843137255 x 100 = 901.96%