A lake with a surface area of 365 acres was monitored during the month of June.  The inflow from a stream was 44 cfs and the outflow from the lake was 35 cfs.  Precipitation for the month was measured at 3.4 in and evaporative loss was estimated at 5.5 in.  Assume no seepage loss occurred.  Estimate the change in storage for the month in inches and feet.  Convert this depth to volume in ac-ft.