-17.08% is the change from 972 to 806
Calculation steps:
[( 806 - 972 ) ÷ 972] x 100 = -17.08%
Formula
Percentage change = [(806 - 972) / 972] x 100
Subtract the new number by the original number
806 - 972 = -166
-166 ÷ 972 = -0.17078189300411523
-0.17078189300411523 x 100 = -17.08%