-57.19% is the change from 918 to 393
Calculation steps:
[( 393 - 918 ) ÷ 918] x 100 = -57.19%
Formula
Percentage change = [(393 - 918) / 918] x 100
Subtract the new number by the original number
393 - 918 = -525
-525 ÷ 918 = -0.5718954248366013
-0.5718954248366013 x 100 = -57.19%