0.34% is the change from 870 to 873
Calculation steps:
[( 873 - 870 ) ÷ 870] x 100 = 0.34%
Formula
Percentage change = [(873 - 870) / 870] x 100
Subtract the new number by the original number
873 - 870 = 3
3 ÷ 870 = 0.0034482758620689655
0.0034482758620689655 x 100 = 0.34%