Michael J. Masch, the chief business officer of the Philadelphia School District, will brief the School Reform Commission today on charter school costs.
Masch is scheduled to make a presentation on "Net Costs of Charter Schools" during the commission's regular, 2 p.m. meeting in the auditorium of the district's headquarters at 440 N. Broad St.
There are 63 charter schools in the city that enroll more than 30,000 students.
The district spent $279 million on charters during 2007-08. The state Department of Education reimbursed the district for about 30 percent of the costs.