-95.02% is the change from 663 to 33
Calculation steps:
[( 33 - 663 ) ÷ 663] x 100 = -95.02%
Formula
Percentage change = [(33 - 663) / 663] x 100
Subtract the new number by the original number
33 - 663 = -630
-630 ÷ 663 = -0.9502262443438914
-0.9502262443438914 x 100 = -95.02%