109.48% is the change from 306 to 641
Calculation steps:
[( 641 - 306 ) ÷ 306] x 100 = 109.48%
Formula
Percentage change = [(641 - 306) / 306] x 100
Subtract the new number by the original number
641 - 306 = 335
335 ÷ 306 = 1.0947712418300655
1.0947712418300655 x 100 = 109.48%