-14.9% is the change from 973 to 828
Calculation steps:
[( 828 - 973 ) ÷ 973] x 100 = -14.9%
Formula
Percentage change = [(828 - 973) / 973] x 100
Subtract the new number by the original number
828 - 973 = -145
-145 ÷ 973 = -0.14902363823227133
-0.14902363823227133 x 100 = -14.9%