-15.31% is the change from 973 to 824
Calculation steps:
[( 824 - 973 ) ÷ 973] x 100 = -15.31%
Formula
Percentage change = [(824 - 973) / 973] x 100
Subtract the new number by the original number
824 - 973 = -149
-149 ÷ 973 = -0.15313463514902365
-0.15313463514902365 x 100 = -15.31%