$$\frac{300}{h}r**120hr\frac{s}{m}$onth $-(0\mathrm{.}15hr\frac{s}{p}$atient $*300$ patient$\frac{s}{m}$onth $)$

$$\frac{300}{h}r**(120hr\frac{s}{m}$onth $-0\mathrm{.}15hr\frac{s}{p}$atient $*300$ patient$\frac{s}{m}$onth $)$

$$\frac{300}{h}r**(120hr\frac{s}{m}$onth $*300$ patient$\frac{s}{m}$onth $)$

$$\frac{300}{h}{r}^{**}(120hr\frac{s}{m}$onth $)$

$$300$