-89.73% is the change from 662 to 68
Calculation steps:
[( 68 - 662 ) ÷ 662] x 100 = -89.73%
Formula
Percentage change = [(68 - 662) / 662] x 100
Subtract the new number by the original number
68 - 662 = -594
-594 ÷ 662 = -0.8972809667673716
-0.8972809667673716 x 100 = -89.73%