-94.37% is the change from 639 to 36
Calculation steps:
[( 36 - 639 ) ÷ 639] x 100 = -94.37%
Formula
Percentage change = [(36 - 639) / 639] x 100
Subtract the new number by the original number
36 - 639 = -603
-603 ÷ 639 = -0.9436619718309859
-0.9436619718309859 x 100 = -94.37%