-15.74% is the change from 972 to 819
Calculation steps:
[( 819 - 972 ) ÷ 972] x 100 = -15.74%
Formula
Percentage change = [(819 - 972) / 972] x 100
Subtract the new number by the original number
819 - 972 = -153
-153 ÷ 972 = -0.1574074074074074
-0.1574074074074074 x 100 = -15.74%