103.26% is the change from 307 to 624
Calculation steps:
[( 624 - 307 ) ÷ 307] x 100 = 103.26%
Formula
Percentage change = [(624 - 307) / 307] x 100
Subtract the new number by the original number
624 - 307 = 317
317 ÷ 307 = 1.0325732899022801
1.0325732899022801 x 100 = 103.26%