30.86% is the change from 648 to 848
Calculation steps:
[( 848 - 648 ) ÷ 648] x 100 = 30.86%
Formula
Percentage change = [(848 - 648) / 648] x 100
Subtract the new number by the original number
848 - 648 = 200
200 ÷ 648 = 0.30864197530864196
0.30864197530864196 x 100 = 30.86%