110.1% is the change from 307 to 645
Calculation steps:
[( 645 - 307 ) ÷ 307] x 100 = 110.1%
Formula
Percentage change = [(645 - 307) / 307] x 100
Subtract the new number by the original number
645 - 307 = 338
338 ÷ 307 = 1.1009771986970684
1.1009771986970684 x 100 = 110.1%