-31.58% is the change from 972 to 665
Calculation steps:
[( 665 - 972 ) ÷ 972] x 100 = -31.58%
Formula
Percentage change = [(665 - 972) / 972] x 100
Subtract the new number by the original number
665 - 972 = -307
-307 ÷ 972 = -0.31584362139917693
-0.31584362139917693 x 100 = -31.58%