-66.02% is the change from 974 to 331
Calculation steps:
[( 331 - 974 ) ÷ 974] x 100 = -66.02%
Formula
Percentage change = [(331 - 974) / 974] x 100
Subtract the new number by the original number
331 - 974 = -643
-643 ÷ 974 = -0.660164271047228
-0.660164271047228 x 100 = -66.02%