This part will take the following additional inputs:

$$ A Daily Increase Rate of vaccines as a fixed percentage of the base vaccination rate. $($i$.$e$.,$ if this parameter is

entered as $10,$ then the number of vaccines administered will increase by $10\%$ of $1\mathrm{.}2$ million, which is $\mathrm{.}12$

million, every day. So$,$ it will be $1\mathrm{.}2,1\mathrm{.}32,1\mathrm{.}44,1\mathrm{.}56....$ millions on successive days$)$

And compute and print the following results:

$1.$ Percentage of population vaccinated by the end of the target time period if the current vaccination rate is

increased by the daily increase rate every day

$2.$ Daily increase rate needed to reach herd immunity by the end of the target time period.

Program Prompt: Target time periods $($in weeks$)$:

User Response: $7$

Program Prompt: Daily vaccination increase rate $($in $\%)$:

User Response: $10$

Program Prints:

Percentage of population vaccinated by the end of the target period $(49$ days or $7$

week$($s$))$ is $70\mathrm{.}28\%.$

Daily increase rate needed to reach herd immunity $(80\%$ of population$)$ is $12\mathrm{.}27\%.$