-24.13% is the change from 286 to 217
Calculation steps:
[( 217 - 286 ) ÷ 286] x 100 = -24.13%
Formula
Percentage change = [(217 - 286) / 286] x 100
Subtract the new number by the original number
217 - 286 = -69
-69 ÷ 286 = -0.24125874125874125
-0.24125874125874125 x 100 = -24.13%