-17.78% is the change from 973 to 800
Calculation steps:
[( 800 - 973 ) ÷ 973] x 100 = -17.78%
Formula
Percentage change = [(800 - 973) / 973] x 100
Subtract the new number by the original number
800 - 973 = -173
-173 ÷ 973 = -0.1778006166495375
-0.1778006166495375 x 100 = -17.78%