-21.86% is the change from 366 to 286
Calculation steps:
[( 286 - 366 ) ÷ 366] x 100 = -21.86%
Formula
Percentage change = [(286 - 366) / 366] x 100
Subtract the new number by the original number
286 - 366 = -80
-80 ÷ 366 = -0.2185792349726776
-0.2185792349726776 x 100 = -21.86%