-88.69% is the change from 663 to 75
Calculation steps:
[( 75 - 663 ) ÷ 663] x 100 = -88.69%
Formula
Percentage change = [(75 - 663) / 663] x 100
Subtract the new number by the original number
75 - 663 = -588
-588 ÷ 663 = -0.8868778280542986
-0.8868778280542986 x 100 = -88.69%