97.94% is the change from 389 to 770
Calculation steps:
[( 770 - 389 ) ÷ 389] x 100 = 97.94%
Formula
Percentage change = [(770 - 389) / 389] x 100
Subtract the new number by the original number
770 - 389 = 381
381 ÷ 389 = 0.9794344473007712
0.9794344473007712 x 100 = 97.94%