11.15% is the change from 287 to 319
Calculation steps:
[( 319 - 287 ) ÷ 287] x 100 = 11.15%
Formula
Percentage change = [(319 - 287) / 287] x 100
Subtract the new number by the original number
319 - 287 = 32
32 ÷ 287 = 0.11149825783972125
0.11149825783972125 x 100 = 11.15%