104.29% is the change from 326 to 666
Calculation steps:
[( 666 - 326 ) ÷ 326] x 100 = 104.29%
Formula
Percentage change = [(666 - 326) / 326] x 100
Subtract the new number by the original number
666 - 326 = 340
340 ÷ 326 = 1.0429447852760736
1.0429447852760736 x 100 = 104.29%