-32.72% is the change from 923 to 621
Calculation steps:
[( 621 - 923 ) ÷ 923] x 100 = -32.72%
Formula
Percentage change = [(621 - 923) / 923] x 100
Subtract the new number by the original number
621 - 923 = -302
-302 ÷ 923 = -0.3271939328277356
-0.3271939328277356 x 100 = -32.72%