-31.28% is the change from 927 to 637
Calculation steps:
[( 637 - 927 ) ÷ 927] x 100 = -31.28%
Formula
Percentage change = [(637 - 927) / 927] x 100
Subtract the new number by the original number
637 - 927 = -290
-290 ÷ 927 = -0.31283710895361383
-0.31283710895361383 x 100 = -31.28%