-62.32% is the change from 852 to 321
Calculation steps:
[( 321 - 852 ) ÷ 852] x 100 = -62.32%
Formula
Percentage change = [(321 - 852) / 852] x 100
Subtract the new number by the original number
321 - 852 = -531
-531 ÷ 852 = -0.6232394366197183
-0.6232394366197183 x 100 = -62.32%