$10-$year Treasury$-$bonds yield $3\mathrm{.}9\%$ and $10-$year corporate bonds yield $7\mathrm{.}15\%.$ The maturity risk premium on both $10-$year Treasury and corporate bonds is $1\mathrm{.}3\%.$ Corporate bonds have a $0\mathrm{.}65\%$ liquidity premium, while T$-$bonds have a zero liquidity premium. What is the default risk premium on corporate bonds?