-62.41% is the change from 854 to 321
Calculation steps:
[( 321 - 854 ) ÷ 854] x 100 = -62.41%
Formula
Percentage change = [(321 - 854) / 854] x 100
Subtract the new number by the original number
321 - 854 = -533
-533 ÷ 854 = -0.6241217798594848
-0.6241217798594848 x 100 = -62.41%