-54.79% is the change from 918 to 415
Calculation steps:
[( 415 - 918 ) ÷ 918] x 100 = -54.79%
Formula
Percentage change = [(415 - 918) / 918] x 100
Subtract the new number by the original number
415 - 918 = -503
-503 ÷ 918 = -0.5479302832244008
-0.5479302832244008 x 100 = -54.79%