-90.31% is the change from 650 to 63
Calculation steps:
[( 63 - 650 ) ÷ 650] x 100 = -90.31%
Formula
Percentage change = [(63 - 650) / 650] x 100
Subtract the new number by the original number
63 - 650 = -587
-587 ÷ 650 = -0.9030769230769231
-0.9030769230769231 x 100 = -90.31%