37.26% is the change from 620 to 851
Calculation steps:
[( 851 - 620 ) ÷ 620] x 100 = 37.26%
Formula
Percentage change = [(851 - 620) / 620] x 100
Subtract the new number by the original number
851 - 620 = 231
231 ÷ 620 = 0.3725806451612903
0.3725806451612903 x 100 = 37.26%