-94.98% is the change from 638 to 32
Calculation steps:
[( 32 - 638 ) ÷ 638] x 100 = -94.98%
Formula
Percentage change = [(32 - 638) / 638] x 100
Subtract the new number by the original number
32 - 638 = -606
-606 ÷ 638 = -0.9498432601880877
-0.9498432601880877 x 100 = -94.98%