-30.67% is the change from 463 to 321
Calculation steps:
[( 321 - 463 ) ÷ 463] x 100 = -30.67%
Formula
Percentage change = [(321 - 463) / 463] x 100
Subtract the new number by the original number
321 - 463 = -142
-142 ÷ 463 = -0.30669546436285094
-0.30669546436285094 x 100 = -30.67%