-57.73% is the change from 918 to 388
Calculation steps:
[( 388 - 918 ) ÷ 918] x 100 = -57.73%
Formula
Percentage change = [(388 - 918) / 918] x 100
Subtract the new number by the original number
388 - 918 = -530
-530 ÷ 918 = -0.5773420479302832
-0.5773420479302832 x 100 = -57.73%