-57.79% is the change from 924 to 390
Calculation steps:
[( 390 - 924 ) ÷ 924] x 100 = -57.79%
Formula
Percentage change = [(390 - 924) / 924] x 100
Subtract the new number by the original number
390 - 924 = -534
-534 ÷ 924 = -0.577922077922078
-0.577922077922078 x 100 = -57.79%