2.29% is the change from 873 to 893
Calculation steps:
[( 893 - 873 ) ÷ 873] x 100 = 2.29%
Formula
Percentage change = [(893 - 873) / 873] x 100
Subtract the new number by the original number
893 - 873 = 20
20 ÷ 873 = 0.022909507445589918
0.022909507445589918 x 100 = 2.29%