-11.14% is the change from 350 to 311
Calculation steps:
[( 311 - 350 ) ÷ 350] x 100 = -11.14%
Formula
Percentage change = [(311 - 350) / 350] x 100
Subtract the new number by the original number
311 - 350 = -39
-39 ÷ 350 = -0.11142857142857143
-0.11142857142857143 x 100 = -11.14%