-69.23% is the change from 637 to 196
Calculation steps:
[( 196 - 637 ) ÷ 637] x 100 = -69.23%
Formula
Percentage change = [(196 - 637) / 637] x 100
Subtract the new number by the original number
196 - 637 = -441
-441 ÷ 637 = -0.6923076923076923
-0.6923076923076923 x 100 = -69.23%