-66.32% is the change from 953 to 321
Calculation steps:
[( 321 - 953 ) ÷ 953] x 100 = -66.32%
Formula
Percentage change = [(321 - 953) / 953] x 100
Subtract the new number by the original number
321 - 953 = -632
-632 ÷ 953 = -0.6631689401888772
-0.6631689401888772 x 100 = -66.32%