30.97% is the change from 662 to 867
Calculation steps:
[( 867 - 662 ) ÷ 662] x 100 = 30.97%
Formula
Percentage change = [(867 - 662) / 662] x 100
Subtract the new number by the original number
867 - 662 = 205
205 ÷ 662 = 0.30966767371601206
0.30966767371601206 x 100 = 30.97%