-17.28% is the change from 972 to 804
Calculation steps:
[( 804 - 972 ) ÷ 972] x 100 = -17.28%
Formula
Percentage change = [(804 - 972) / 972] x 100
Subtract the new number by the original number
804 - 972 = -168
-168 ÷ 972 = -0.1728395061728395
-0.1728395061728395 x 100 = -17.28%