-50.87% is the change from 918 to 451
Calculation steps:
[( 451 - 918 ) ÷ 918] x 100 = -50.87%
Formula
Percentage change = [(451 - 918) / 918] x 100
Subtract the new number by the original number
451 - 918 = -467
-467 ÷ 918 = -0.5087145969498911
-0.5087145969498911 x 100 = -50.87%