-29.38% is the change from 902 to 637
Calculation steps:
[( 637 - 902 ) ÷ 902] x 100 = -29.38%
Formula
Percentage change = [(637 - 902) / 902] x 100
Subtract the new number by the original number
637 - 902 = -265
-265 ÷ 902 = -0.29379157427937913
-0.29379157427937913 x 100 = -29.38%