-8.04% is the change from 311 to 286
Calculation steps:
[( 286 - 311 ) ÷ 311] x 100 = -8.04%
Formula
Percentage change = [(286 - 311) / 311] x 100
Subtract the new number by the original number
286 - 311 = -25
-25 ÷ 311 = -0.08038585209003216
-0.08038585209003216 x 100 = -8.04%