50.99% is the change from 302 to 456
Calculation steps:
[( 456 - 302 ) ÷ 302] x 100 = 50.99%
Formula
Percentage change = [(456 - 302) / 302] x 100
Subtract the new number by the original number
456 - 302 = 154
154 ÷ 302 = 0.5099337748344371
0.5099337748344371 x 100 = 50.99%