2.98% is the change from 671 to 691
Calculation steps:
[( 691 - 671 ) ÷ 671] x 100 = 2.98%
Formula
Percentage change = [(691 - 671) / 671] x 100
Subtract the new number by the original number
691 - 671 = 20
20 ÷ 671 = 0.029806259314456036
0.029806259314456036 x 100 = 2.98%