34.02% is the change from 635 to 851
Calculation steps:
[( 851 - 635 ) ÷ 635] x 100 = 34.02%
Formula
Percentage change = [(851 - 635) / 635] x 100
Subtract the new number by the original number
851 - 635 = 216
216 ÷ 635 = 0.3401574803149606
0.3401574803149606 x 100 = 34.02%