-15.16% is the change from 310 to 263
Calculation steps:
[( 263 - 310 ) ÷ 310] x 100 = -15.16%
Formula
Percentage change = [(263 - 310) / 310] x 100
Subtract the new number by the original number
263 - 310 = -47
-47 ÷ 310 = -0.15161290322580645
-0.15161290322580645 x 100 = -15.16%