536.36% is the change from 121 to 770
Calculation steps:
[( 770 - 121 ) ÷ 121] x 100 = 536.36%
Formula
Percentage change = [(770 - 121) / 121] x 100
Subtract the new number by the original number
770 - 121 = 649
649 ÷ 121 = 5.363636363636363
5.363636363636363 x 100 = 536.36%