-81.87% is the change from 822 to 149
Calculation steps:
[( 149 - 822 ) ÷ 822] x 100 = -81.87%
Formula
Percentage change = [(149 - 822) / 822] x 100
Subtract the new number by the original number
149 - 822 = -673
-673 ÷ 822 = -0.818734793187348
-0.818734793187348 x 100 = -81.87%