106.9% is the change from 319 to 660
Calculation steps:
[( 660 - 319 ) ÷ 319] x 100 = 106.9%
Formula
Percentage change = [(660 - 319) / 319] x 100
Subtract the new number by the original number
660 - 319 = 341
341 ÷ 319 = 1.0689655172413792
1.0689655172413792 x 100 = 106.9%