1409.8% is the change from 51 to 770
Calculation steps:
[( 770 - 51 ) ÷ 51] x 100 = 1409.8%
Formula
Percentage change = [(770 - 51) / 51] x 100
Subtract the new number by the original number
770 - 51 = 719
719 ÷ 51 = 14.098039215686274
14.098039215686274 x 100 = 1409.8%