-21.48% is the change from 284 to 223
Calculation steps:
[( 223 - 284 ) ÷ 284] x 100 = -21.48%
Formula
Percentage change = [(223 - 284) / 284] x 100
Subtract the new number by the original number
223 - 284 = -61
-61 ÷ 284 = -0.2147887323943662
-0.2147887323943662 x 100 = -21.48%