27.9% is the change from 491 to 628
Calculation steps:
[( 628 - 491 ) ÷ 491] x 100 = 27.9%
Formula
Percentage change = [(628 - 491) / 491] x 100
Subtract the new number by the original number
628 - 491 = 137
137 ÷ 491 = 0.2790224032586558
0.2790224032586558 x 100 = 27.9%