105.3% is the change from 302 to 620
Calculation steps:
[( 620 - 302 ) ÷ 302] x 100 = 105.3%
Formula
Percentage change = [(620 - 302) / 302] x 100
Subtract the new number by the original number
620 - 302 = 318
318 ÷ 302 = 1.0529801324503312
1.0529801324503312 x 100 = 105.3%