-51.31% is the change from 918 to 447
Calculation steps:
[( 447 - 918 ) ÷ 918] x 100 = -51.31%
Formula
Percentage change = [(447 - 918) / 918] x 100
Subtract the new number by the original number
447 - 918 = -471
-471 ÷ 918 = -0.5130718954248366
-0.5130718954248366 x 100 = -51.31%