685.71% is the change from 98 to 770
Calculation steps:
[( 770 - 98 ) ÷ 98] x 100 = 685.71%
Formula
Percentage change = [(770 - 98) / 98] x 100
Subtract the new number by the original number
770 - 98 = 672
672 ÷ 98 = 6.857142857142857
6.857142857142857 x 100 = 685.71%