-66.63% is the change from 962 to 321
Calculation steps:
[( 321 - 962 ) ÷ 962] x 100 = -66.63%
Formula
Percentage change = [(321 - 962) / 962] x 100
Subtract the new number by the original number
321 - 962 = -641
-641 ÷ 962 = -0.6663201663201663
-0.6663201663201663 x 100 = -66.63%