-73.6% is the change from 822 to 217
Calculation steps:
[( 217 - 822 ) ÷ 822] x 100 = -73.6%
Formula
Percentage change = [(217 - 822) / 822] x 100
Subtract the new number by the original number
217 - 822 = -605
-605 ÷ 822 = -0.7360097323600974
-0.7360097323600974 x 100 = -73.6%