-56.45% is the change from 923 to 402
Calculation steps:
[( 402 - 923 ) ÷ 923] x 100 = -56.45%
Formula
Percentage change = [(402 - 923) / 923] x 100
Subtract the new number by the original number
402 - 923 = -521
-521 ÷ 923 = -0.5644637053087758
-0.5644637053087758 x 100 = -56.45%