-66.91% is the change from 967 to 320
Calculation steps:
[( 320 - 967 ) ÷ 967] x 100 = -66.91%
Formula
Percentage change = [(320 - 967) / 967] x 100
Subtract the new number by the original number
320 - 967 = -647
-647 ÷ 967 = -0.6690796277145812
-0.6690796277145812 x 100 = -66.91%