-62.04% is the change from 822 to 312
Calculation steps:
[( 312 - 822 ) ÷ 822] x 100 = -62.04%
Formula
Percentage change = [(312 - 822) / 822] x 100
Subtract the new number by the original number
312 - 822 = -510
-510 ÷ 822 = -0.6204379562043796
-0.6204379562043796 x 100 = -62.04%