-67.15% is the change from 974 to 320
Calculation steps:
[( 320 - 974 ) ÷ 974] x 100 = -67.15%
Formula
Percentage change = [(320 - 974) / 974] x 100
Subtract the new number by the original number
320 - 974 = -654
-654 ÷ 974 = -0.6714579055441479
-0.6714579055441479 x 100 = -67.15%