-48.56% is the change from 418 to 215
Calculation steps:
[( 215 - 418 ) ÷ 418] x 100 = -48.56%
Formula
Percentage change = [(215 - 418) / 418] x 100
Subtract the new number by the original number
215 - 418 = -203
-203 ÷ 418 = -0.48564593301435405
-0.48564593301435405 x 100 = -48.56%