23.15% is the change from 661 to 814
Calculation steps:
[( 814 - 661 ) ÷ 661] x 100 = 23.15%
Formula
Percentage change = [(814 - 661) / 661] x 100
Subtract the new number by the original number
814 - 661 = 153
153 ÷ 661 = 0.2314674735249622
0.2314674735249622 x 100 = 23.15%