1.98% is the change from 657 to 670
Calculation steps:
[( 670 - 657 ) ÷ 657] x 100 = 1.98%
Formula
Percentage change = [(670 - 657) / 657] x 100
Subtract the new number by the original number
670 - 657 = 13
13 ÷ 657 = 0.0197869101978691
0.0197869101978691 x 100 = 1.98%