20.71% is the change from 705 to 851
Calculation steps:
[( 851 - 705 ) ÷ 705] x 100 = 20.71%
Formula
Percentage change = [(851 - 705) / 705] x 100
Subtract the new number by the original number
851 - 705 = 146
146 ÷ 705 = 0.20709219858156028
0.20709219858156028 x 100 = 20.71%