-93.17% is the change from 966 to 66
Calculation steps:
[( 66 - 966 ) ÷ 966] x 100 = -93.17%
Formula
Percentage change = [(66 - 966) / 966] x 100
Subtract the new number by the original number
66 - 966 = -900
-900 ÷ 966 = -0.9316770186335404
-0.9316770186335404 x 100 = -93.17%