-51.45% is the change from 449 to 218
Calculation steps:
[( 218 - 449 ) ÷ 449] x 100 = -51.45%
Formula
Percentage change = [(218 - 449) / 449] x 100
Subtract the new number by the original number
218 - 449 = -231
-231 ÷ 449 = -0.5144766146993318
-0.5144766146993318 x 100 = -51.45%