After a certain medicine is ingested, its concentration in the bloodstream changes over time.
The relationship between the elapsed time, $t$, in minutes, since the medicine was ingested, and its concentration in the bloodstream, $C(t)$, in $\text{mg/L}$ is modeled by the following function:
###$C(t)=95\cdot (0.87)\^{\Large t}$
**Complete the following sentence about the rate of change in the concentration of the medicine.**
Every minute, the concentration of the medicine [[☃ dropdown 2]] by a factor of [[☃ numeric-input 1]].