-50.33% is the change from 918 to 456
Calculation steps:
[( 456 - 918 ) ÷ 918] x 100 = -50.33%
Formula
Percentage change = [(456 - 918) / 918] x 100
Subtract the new number by the original number
456 - 918 = -462
-462 ÷ 918 = -0.5032679738562091
-0.5032679738562091 x 100 = -50.33%