46.18% is the change from 288 to 421
Calculation steps:
[( 421 - 288 ) ÷ 288] x 100 = 46.18%
Formula
Percentage change = [(421 - 288) / 288] x 100
Subtract the new number by the original number
421 - 288 = 133
133 ÷ 288 = 0.4618055555555556
0.4618055555555556 x 100 = 46.18%