-57.96% is the change from 923 to 388
Calculation steps:
[( 388 - 923 ) ÷ 923] x 100 = -57.96%
Formula
Percentage change = [(388 - 923) / 923] x 100
Subtract the new number by the original number
388 - 923 = -535
-535 ÷ 923 = -0.5796316359696642
-0.5796316359696642 x 100 = -57.96%