15.66% is the change from 249 to 288
Calculation steps:
[( 288 - 249 ) ÷ 249] x 100 = 15.66%
Formula
Percentage change = [(288 - 249) / 249] x 100
Subtract the new number by the original number
288 - 249 = 39
39 ÷ 249 = 0.1566265060240964
0.1566265060240964 x 100 = 15.66%