665.56% is the change from 90 to 689
Calculation steps:
[( 689 - 90 ) ÷ 90] x 100 = 665.56%
Formula
Percentage change = [(689 - 90) / 90] x 100
Subtract the new number by the original number
689 - 90 = 599
599 ÷ 90 = 6.655555555555556
6.655555555555556 x 100 = 665.56%