48.87% is the change from 309 to 460
Calculation steps:
[( 460 - 309 ) ÷ 309] x 100 = 48.87%
Formula
Percentage change = [(460 - 309) / 309] x 100
Subtract the new number by the original number
460 - 309 = 151
151 ÷ 309 = 0.4886731391585761
0.4886731391585761 x 100 = 48.87%