-93.21% is the change from 972 to 66
Calculation steps:
[( 66 - 972 ) ÷ 972] x 100 = -93.21%
Formula
Percentage change = [(66 - 972) / 972] x 100
Subtract the new number by the original number
66 - 972 = -906
-906 ÷ 972 = -0.9320987654320988
-0.9320987654320988 x 100 = -93.21%