-22.14% is the change from 280 to 218
Calculation steps:
[( 218 - 280 ) ÷ 280] x 100 = -22.14%
Formula
Percentage change = [(218 - 280) / 280] x 100
Subtract the new number by the original number
218 - 280 = -62
-62 ÷ 280 = -0.22142857142857142
-0.22142857142857142 x 100 = -22.14%