18.4% is the change from 837 to 991
Calculation steps:
[( 991 - 837 ) ÷ 837] x 100 = 18.4%
Formula
Percentage change = [(991 - 837) / 837] x 100
Subtract the new number by the original number
991 - 837 = 154
154 ÷ 837 = 0.18399044205495818
0.18399044205495818 x 100 = 18.4%