-40.3% is the change from 923 to 551
Calculation steps:
[( 551 - 923 ) ÷ 923] x 100 = -40.3%
Formula
Percentage change = [(551 - 923) / 923] x 100
Subtract the new number by the original number
551 - 923 = -372
-372 ÷ 923 = -0.40303358613217766
-0.40303358613217766 x 100 = -40.3%