15.38% is the change from 312 to 360
Calculation steps:
[( 360 - 312 ) ÷ 312] x 100 = 15.38%
Formula
Percentage change = [(360 - 312) / 312] x 100
Subtract the new number by the original number
360 - 312 = 48
48 ÷ 312 = 0.15384615384615385
0.15384615384615385 x 100 = 15.38%