48.61% is the change from 288 to 428
Calculation steps:
[( 428 - 288 ) ÷ 288] x 100 = 48.61%
Formula
Percentage change = [(428 - 288) / 288] x 100
Subtract the new number by the original number
428 - 288 = 140
140 ÷ 288 = 0.4861111111111111
0.4861111111111111 x 100 = 48.61%