At August $31,$ Kingbird, Inc. has a cash balance per books of $$8,320$ and the following additional data from the bank statement: charge for printing Kingbird, Inc. checks $$50$ and interest earned on checking account balance $$46.$ In addition, Kingbird, Inc. has outstanding checks of $$880.$

Determine the adjusted cash balance per books at August $31.$

Adjusted cash balance per books