-96.55% is the change from 637 to 22
Calculation steps:
[( 22 - 637 ) ÷ 637] x 100 = -96.55%
Formula
Percentage change = [(22 - 637) / 637] x 100
Subtract the new number by the original number
22 - 637 = -615
-615 ÷ 637 = -0.9654631083202512
-0.9654631083202512 x 100 = -96.55%