-19.93% is the change from 286 to 229
Calculation steps:
[( 229 - 286 ) ÷ 286] x 100 = -19.93%
Formula
Percentage change = [(229 - 286) / 286] x 100
Subtract the new number by the original number
229 - 286 = -57
-57 ÷ 286 = -0.1993006993006993
-0.1993006993006993 x 100 = -19.93%