50.98% is the change from 306 to 462
Calculation steps:
[( 462 - 306 ) ÷ 306] x 100 = 50.98%
Formula
Percentage change = [(462 - 306) / 306] x 100
Subtract the new number by the original number
462 - 306 = 156
156 ÷ 306 = 0.5098039215686274
0.5098039215686274 x 100 = 50.98%