Calculate the On-Hand Balance (OTB) as of April 10, given the following information: Planned sales, April 1 to 30 $57,000; Actual sales, April 1 to 10 $25,000; Merchandise on hand, April 10 $75,000; Planned stock, May 1 $64,000; Planned markdowns $3,500; Actual markdowns, April 1 to 10 $1,500; Merchandise on order, April 10 $12,000.