988.24% is the change from 51 to 555
Calculation steps:
[( 555 - 51 ) ÷ 51] x 100 = 988.24%
Formula
Percentage change = [(555 - 51) / 51] x 100
Subtract the new number by the original number
555 - 51 = 504
504 ÷ 51 = 9.882352941176471
9.882352941176471 x 100 = 988.24%