-32.5% is the change from 923 to 623
Calculation steps:
[( 623 - 923 ) ÷ 923] x 100 = -32.5%
Formula
Percentage change = [(623 - 923) / 923] x 100
Subtract the new number by the original number
623 - 923 = -300
-300 ÷ 923 = -0.3250270855904659
-0.3250270855904659 x 100 = -32.5%