-3.56% is the change from 309 to 298
Calculation steps:
[( 298 - 309 ) ÷ 309] x 100 = -3.56%
Formula
Percentage change = [(298 - 309) / 309] x 100
Subtract the new number by the original number
298 - 309 = -11
-11 ÷ 309 = -0.03559870550161812
-0.03559870550161812 x 100 = -3.56%