-90.48% is the change from 662 to 63
Calculation steps:
[( 63 - 662 ) ÷ 662] x 100 = -90.48%
Formula
Percentage change = [(63 - 662) / 662] x 100
Subtract the new number by the original number
63 - 662 = -599
-599 ÷ 662 = -0.904833836858006
-0.904833836858006 x 100 = -90.48%