-24.03% is the change from 283 to 215
Calculation steps:
[( 215 - 283 ) ÷ 283] x 100 = -24.03%
Formula
Percentage change = [(215 - 283) / 283] x 100
Subtract the new number by the original number
215 - 283 = -68
-68 ÷ 283 = -0.24028268551236748
-0.24028268551236748 x 100 = -24.03%