-0.3% is the change from 675 to 673
Calculation steps:
[( 673 - 675 ) ÷ 675] x 100 = -0.3%
Formula
Percentage change = [(673 - 675) / 675] x 100
Subtract the new number by the original number
673 - 675 = -2
-2 ÷ 675 = -0.002962962962962963
-0.002962962962962963 x 100 = -0.3%