A commercial bank has $ $500$ million assets, of which $$87$ million are rate$-$sensitive$.$ It also has $$82$ million rate$-$sensitive liabilities. What is this bank's gap $\_\_\_\_\_$ in million dollars?

Answer: $$\_\_\_\_\_\_\_\_$million

A commercial bank has $ $500$ million assets, of which $$89$ million are rate$-$sensitive$.$ It also has $$64$ million rate$-$sensitive liabilities. What is this bank's gap ratio?