-66.15% is the change from 972 to 329
Calculation steps:
[( 329 - 972 ) ÷ 972] x 100 = -66.15%
Formula
Percentage change = [(329 - 972) / 972] x 100
Subtract the new number by the original number
329 - 972 = -643
-643 ÷ 972 = -0.661522633744856
-0.661522633744856 x 100 = -66.15%