103.66% is the change from 328 to 668
Calculation steps:
[( 668 - 328 ) ÷ 328] x 100 = 103.66%
Formula
Percentage change = [(668 - 328) / 328] x 100
Subtract the new number by the original number
668 - 328 = 340
340 ÷ 328 = 1.0365853658536586
1.0365853658536586 x 100 = 103.66%