-62.01% is the change from 845 to 321
Calculation steps:
[( 321 - 845 ) ÷ 845] x 100 = -62.01%
Formula
Percentage change = [(321 - 845) / 845] x 100
Subtract the new number by the original number
321 - 845 = -524
-524 ÷ 845 = -0.6201183431952663
-0.6201183431952663 x 100 = -62.01%