-29.85% is the change from 908 to 637
Calculation steps:
[( 637 - 908 ) ÷ 908] x 100 = -29.85%
Formula
Percentage change = [(637 - 908) / 908] x 100
Subtract the new number by the original number
637 - 908 = -271
-271 ÷ 908 = -0.29845814977973567
-0.29845814977973567 x 100 = -29.85%