Bad math: Software error tweaks grades in N Carolina schools

RALEIGH, N.C. (AP) — North Carolina education officials say a software error caused some students around the state to receive incorrect end-of-term grades this school year.
The Department of Public Instruction said it has been advising districts since December about the software problem. A department news release said the error comes from a change this school year in grade calculation methods in PowerSchool software.
The department said the software improperly rounded final grade averages