-52.09% is the change from 455 to 218
Calculation steps:
[( 218 - 455 ) ÷ 455] x 100 = -52.09%
Formula
Percentage change = [(218 - 455) / 455] x 100
Subtract the new number by the original number
218 - 455 = -237
-237 ÷ 455 = -0.5208791208791209
-0.5208791208791209 x 100 = -52.09%