-43.57% is the change from 918 to 518
Calculation steps:
[( 518 - 918 ) ÷ 918] x 100 = -43.57%
Formula
Percentage change = [(518 - 918) / 918] x 100
Subtract the new number by the original number
518 - 918 = -400
-400 ÷ 918 = -0.4357298474945534
-0.4357298474945534 x 100 = -43.57%