-93.89% is the change from 393 to 24
Calculation steps:
[( 24 - 393 ) ÷ 393] x 100 = -93.89%
Formula
Percentage change = [(24 - 393) / 393] x 100
Subtract the new number by the original number
24 - 393 = -369
-369 ÷ 393 = -0.9389312977099237
-0.9389312977099237 x 100 = -93.89%