Complete the following table comparing tax rates.

$\backslash$table$[[$Percent$,$Per $$100,$Per $$1000,$In Mills$],[2\mathrm{.}57\%,($a$)$ $$,($b$)$ $$,($c$)]]$

What is the tax rate written as per $$100?$

$2\mathrm{.}57\%=$$ per $$100$