-9.32% is the change from 311 to 282
Calculation steps:
[( 282 - 311 ) ÷ 311] x 100 = -9.32%
Formula
Percentage change = [(282 - 311) / 311] x 100
Subtract the new number by the original number
282 - 311 = -29
-29 ÷ 311 = -0.0932475884244373
-0.0932475884244373 x 100 = -9.32%