Clemence began studying a sample of the chemical element einsteinium-$253$, which naturally loses its mass over time. The relationship between the elapsed time, $t$, in days, since Clemence started studying the sample, and the total mass remaining in the sample, $M(t)$, in milligrams, is modeled by the following function: ###$M(t)=200\cdot (0.96)\^{\Large t}$ **Complete the following sentence about the daily rate of change in the mass of the sample.** Every day, the mass of the sample [[☃ dropdown 2]] by a factor of [[☃ numeric-input 1]].