-92.9% is the change from 930 to 66
Calculation steps:
[( 66 - 930 ) ÷ 930] x 100 = -92.9%
Formula
Percentage change = [(66 - 930) / 930] x 100
Subtract the new number by the original number
66 - 930 = -864
-864 ÷ 930 = -0.9290322580645162
-0.9290322580645162 x 100 = -92.9%