30.08% is the change from 665 to 865
Calculation steps:
[( 865 - 665 ) ÷ 665] x 100 = 30.08%
Formula
Percentage change = [(865 - 665) / 665] x 100
Subtract the new number by the original number
865 - 665 = 200
200 ÷ 665 = 0.3007518796992481
0.3007518796992481 x 100 = 30.08%