9.66% is the change from 611 to 670
Calculation steps:
[( 670 - 611 ) ÷ 611] x 100 = 9.66%
Formula
Percentage change = [(670 - 611) / 611] x 100
Subtract the new number by the original number
670 - 611 = 59
59 ÷ 611 = 0.09656301145662848
0.09656301145662848 x 100 = 9.66%