-15.33% is the change from 972 to 823
Calculation steps:
[( 823 - 972 ) ÷ 972] x 100 = -15.33%
Formula
Percentage change = [(823 - 972) / 972] x 100
Subtract the new number by the original number
823 - 972 = -149
-149 ÷ 972 = -0.15329218106995884
-0.15329218106995884 x 100 = -15.33%