1201.96% is the change from 51 to 664
Calculation steps:
[( 664 - 51 ) ÷ 51] x 100 = 1201.96%
Formula
Percentage change = [(664 - 51) / 51] x 100
Subtract the new number by the original number
664 - 51 = 613
613 ÷ 51 = 12.019607843137255
12.019607843137255 x 100 = 1201.96%