-9.76% is the change from 338 to 305
Calculation steps:
[( 305 - 338 ) ÷ 338] x 100 = -9.76%
Formula
Percentage change = [(305 - 338) / 338] x 100
Subtract the new number by the original number
305 - 338 = -33
-33 ÷ 338 = -0.09763313609467456
-0.09763313609467456 x 100 = -9.76%