-50.54% is the change from 918 to 454
Calculation steps:
[( 454 - 918 ) ÷ 918] x 100 = -50.54%
Formula
Percentage change = [(454 - 918) / 918] x 100
Subtract the new number by the original number
454 - 918 = -464
-464 ÷ 918 = -0.5054466230936819
-0.5054466230936819 x 100 = -50.54%