31.3% is the change from 671 to 881
Calculation steps:
[( 881 - 671 ) ÷ 671] x 100 = 31.3%
Formula
Percentage change = [(881 - 671) / 671] x 100
Subtract the new number by the original number
881 - 671 = 210
210 ÷ 671 = 0.31296572280178836
0.31296572280178836 x 100 = 31.3%