-47.2% is the change from 822 to 434
Calculation steps:
[( 434 - 822 ) ÷ 822] x 100 = -47.2%
Formula
Percentage change = [(434 - 822) / 822] x 100
Subtract the new number by the original number
434 - 822 = -388
-388 ÷ 822 = -0.4720194647201946
-0.4720194647201946 x 100 = -47.2%