The XYZ corporation pension plan provides a lifetime annual income to its employees upon retirement age at $65.$ The plan provides $3\%$ for each year of service of the employee's salary upon retirement. Moreover, those retiring after $65$ have their benefit increased by $1\mathrm{.}5\%$ for each year beyond the $65$ that they work

Caitlin retires at age $66$ with $15$ years of service. If her salary upon retirement is $$62,894,$ what is her annual pension benefit?