Delmo Donuts sells donuts for $1.30 each. Over the past year, the highest monthly sales volume was 5,100 and the lowest monthly sales volume was 3,340 . In the month where the highest sales were achieved, total costs were $4,870. In the month where the lowest sales occurred, total costs were $3,814. Delmo Donuts' estimated variable cost per donut (to the nearest cent) is $1.14 $0.70 $0.95 $0.60