39.58% is the change from 288 to 402
Calculation steps:
[( 402 - 288 ) ÷ 288] x 100 = 39.58%
Formula
Percentage change = [(402 - 288) / 288] x 100
Subtract the new number by the original number
402 - 288 = 114
114 ÷ 288 = 0.3958333333333333
0.3958333333333333 x 100 = 39.58%