-29.3% is the change from 901 to 637
Calculation steps:
[( 637 - 901 ) ÷ 901] x 100 = -29.3%
Formula
Percentage change = [(637 - 901) / 901] x 100
Subtract the new number by the original number
637 - 901 = -264
-264 ÷ 901 = -0.293007769145394
-0.293007769145394 x 100 = -29.3%