Multiply the absolute values of the numbers.

$\displaystyle{\left({6}\right)}{\left({2}\right)}{\left({5}\right)}{\left({1}\right)}{\left({4}\right)}={12}{\left({5}\right)}{\left({1}\right)}{\left({4}\right)}={60}{\left({1}\right)}{\left({4}\right)}={60}{\left({4}\right)}={240}\usepackage{cmbright}\Huge\$ .

The number of negative factors is even, so the product is positive.