What is every Atlantic Division team's record against the over/under line as an underdog since the 2014-2015 season?

Definitions
Team Over Record Over % Under % Total +/-
Toronto 168-155-3 52.0% 48.0% +0.9
Brooklyn 246-259-8 48.7% 51.3% +0.8
Philadelphia 204-219-5 48.2% 51.8% -1.0
New York 260-283-9 47.9% 52.1% +0.1
Boston 119-142-3 45.6% 54.4% -0.8