Write a query which selects the first name, commission$\_$pct and city name of all employees who earn a commission less than $0\mathrm{.}30.$ Order the results by commission percentage, in descending order.

first$\_$name commission$\_$pct city

Eleni

$0\mathrm{.}20$

Jonathon

$0\mathrm{.}20$

Oxford

Kimberely

$0\mathrm{.}15$

Oxford

NULL