-85.35% is the change from 662 to 97
Calculation steps:
[( 97 - 662 ) ÷ 662] x 100 = -85.35%
Formula
Percentage change = [(97 - 662) / 662] x 100
Subtract the new number by the original number
97 - 662 = -565
-565 ÷ 662 = -0.8534743202416919
-0.8534743202416919 x 100 = -85.35%