25.79% is the change from 663 to 834
Calculation steps:
[( 834 - 663 ) ÷ 663] x 100 = 25.79%
Formula
Percentage change = [(834 - 663) / 663] x 100
Subtract the new number by the original number
834 - 663 = 171
171 ÷ 663 = 0.2579185520361991
0.2579185520361991 x 100 = 25.79%