-31.96% is the change from 923 to 628
Calculation steps:
[( 628 - 923 ) ÷ 923] x 100 = -31.96%
Formula
Percentage change = [(628 - 923) / 923] x 100
Subtract the new number by the original number
628 - 923 = -295
-295 ÷ 923 = -0.3196099674972914
-0.3196099674972914 x 100 = -31.96%