-52.3% is the change from 457 to 218
Calculation steps:
[( 218 - 457 ) ÷ 457] x 100 = -52.3%
Formula
Percentage change = [(218 - 457) / 457] x 100
Subtract the new number by the original number
218 - 457 = -239
-239 ÷ 457 = -0.5229759299781181
-0.5229759299781181 x 100 = -52.3%