You are a financial analyst at a prominent investment firm, and you have been tasked with evaluating two investment opportunities for a client: a $20-$year Treasury bond and a $20-$year corporate bond issued by HighTech Corp, a leading technology firm. The current market data is as follows:

The $20-$year Treasury bond is offering a yield of $4\mathrm{.}80\%.$

HighTech Corp's $20-$year corporate bond is offering a yield of $7\mathrm{.}00\%.$

You are aware that corporate bonds generally include a liquidity premium due to their lower marketability compared to government bonds. For High$-$tech Corp's bond, the liquidity premium is estimated to be $0\mathrm{.}38\%.$

Calculate the default risk premium$(\%)$ on High$-$tech Corp's corporate bond.