-60.78% is the change from 821 to 322
Calculation steps:
[( 322 - 821 ) ÷ 821] x 100 = -60.78%
Formula
Percentage change = [(322 - 821) / 821] x 100
Subtract the new number by the original number
322 - 821 = -499
-499 ÷ 821 = -0.607795371498173
-0.607795371498173 x 100 = -60.78%