-43.9% is the change from 918 to 515
Calculation steps:
[( 515 - 918 ) ÷ 918] x 100 = -43.9%
Formula
Percentage change = [(515 - 918) / 918] x 100
Subtract the new number by the original number
515 - 918 = -403
-403 ÷ 918 = -0.43899782135076254
-0.43899782135076254 x 100 = -43.9%