-60.57% is the change from 814 to 321
Calculation steps:
[( 321 - 814 ) ÷ 814] x 100 = -60.57%
Formula
Percentage change = [(321 - 814) / 814] x 100
Subtract the new number by the original number
321 - 814 = -493
-493 ÷ 814 = -0.6056511056511057
-0.6056511056511057 x 100 = -60.57%