-36.58% is the change from 637 to 404
Calculation steps:
[( 404 - 637 ) ÷ 637] x 100 = -36.58%
Formula
Percentage change = [(404 - 637) / 637] x 100
Subtract the new number by the original number
404 - 637 = -233
-233 ÷ 637 = -0.36577708006279436
-0.36577708006279436 x 100 = -36.58%