690% is the change from 90 to 711
Calculation steps:
[( 711 - 90 ) ÷ 90] x 100 = 690%
Formula
Percentage change = [(711 - 90) / 90] x 100
Subtract the new number by the original number
711 - 90 = 621
621 ÷ 90 = 6.9
6.9 x 100 = 690%
Example