Based on their respective cash conversion cycle $($CCC$)$ ratios, which of the following six covid$-19$ testing labs$/$centers in East L$.$A$.$ is able to use up working capital, and therefore generate revenue, the fastest? $$Lab J:$68\mathrm{.}3$ Lab$$ K:$-3\mathrm{.}5$ Lab$$ L:$-1\mathrm{.}1$ Lab M:$59\mathrm{.}7$ Lab N:$93\mathrm{.}4$ Lab O:$5\mathrm{.}7$ Lab P:$-4\mathrm{.}0$