-78.95% is the change from 822 to 173
Calculation steps:
[( 173 - 822 ) ÷ 822] x 100 = -78.95%
Formula
Percentage change = [(173 - 822) / 822] x 100
Subtract the new number by the original number
173 - 822 = -649
-649 ÷ 822 = -0.7895377128953771
-0.7895377128953771 x 100 = -78.95%