-30.69% is the change from 971 to 673
Calculation steps:
[( 673 - 971 ) ÷ 971] x 100 = -30.69%
Formula
Percentage change = [(673 - 971) / 971] x 100
Subtract the new number by the original number
673 - 971 = -298
-298 ÷ 971 = -0.30690010298661174
-0.30690010298661174 x 100 = -30.69%