If the $18 million was paid out in equal quarterly payments for the 7 years and the current long term interest?

When Michael Westbrook signed a 7-year, $18 million contract with the Washington Redskins, it included a $6.5 million signing bonus that was the largest for a wide receiver in NFL history. If the $18 million was paid out in equal quarterly payments for the 7 years and the current long term interest rate is 6.85%, how much was the contract worth when it was signed?