-12.24% is the change from 286 to 251
Calculation steps:
[( 251 - 286 ) ÷ 286] x 100 = -12.24%
Formula
Percentage change = [(251 - 286) / 286] x 100
Subtract the new number by the original number
251 - 286 = -35
-35 ÷ 286 = -0.12237762237762238
-0.12237762237762238 x 100 = -12.24%