29.55% is the change from 264 to 342
Calculation steps:
[( 342 - 264 ) ÷ 264] x 100 = 29.55%
Formula
Percentage change = [(342 - 264) / 264] x 100
Subtract the new number by the original number
342 - 264 = 78
78 ÷ 264 = 0.29545454545454547
0.29545454545454547 x 100 = 29.55%