-53.49% is the change from 918 to 427
Calculation steps:
[( 427 - 918 ) ÷ 918] x 100 = -53.49%
Formula
Percentage change = [(427 - 918) / 918] x 100
Subtract the new number by the original number
427 - 918 = -491
-491 ÷ 918 = -0.5348583877995643
-0.5348583877995643 x 100 = -53.49%