34.7% is the change from 634 to 854
Calculation steps:
[( 854 - 634 ) ÷ 634] x 100 = 34.7%
Formula
Percentage change = [(854 - 634) / 634] x 100
Subtract the new number by the original number
854 - 634 = 220
220 ÷ 634 = 0.3470031545741325
0.3470031545741325 x 100 = 34.7%