-37.35% is the change from 822 to 515
Calculation steps:
[( 515 - 822 ) ÷ 822] x 100 = -37.35%
Formula
Percentage change = [(515 - 822) / 822] x 100
Subtract the new number by the original number
515 - 822 = -307
-307 ÷ 822 = -0.3734793187347932
-0.3734793187347932 x 100 = -37.35%