Consider the function $R(t)$ as representing the value of an ounce of palladium in U$.$S$.$ dollars as a function of the time $t$ in days. $$

$R(t)=23020t^3$;$t=1$

Find the average rate of change of $R(t)$ over the time intervals $t,th,$ where $t$ is as indicated and $h=1,0\mathrm{.}1,$ and $0\mathrm{.}01$ days. $($Use smaller values of $h$ to check your estimates.$)$ HINT $[$See Example $1.]($Round your answers to one decimal place.$)$

$\backslash$table$[[h,1,0\mathrm{.}1,0\mathrm{.}01],[$Ave$.$ rate,,,$]]$

Estimate the instantaneous rate of change of $R$ at time $t,$ specifying the units of measurement.

$R^{\text{'}}(1)=$