Instructions Redo Programming Exercise $16$ of Chapter $4$ so that all the named constants are defined in a namespace royaltyRates.

Instructions for Programming Exercise $16$ of Chapter $4$ have been posted below for your convenience.

Exercise $16$ A new author is in the process of negotiating a contract for a new romance novel. The publisher is offering three options. In the first option, the author is paid $$5,000$ upon delivery of the final manuscript and $$20,000$ when the novel is published. In the second option, the author is paid $12\mathrm{.}5\%$ of the net price of the novel for each copy of the novel sold. In the third option, the author is paid $10\%$ of the net price for the first $4,000$ copies sold, and $14\%$ of the net price for the copies sold over $4,000.$ The author has some idea about the number of copies that will be sold and would like to have an estimate of the royalties generated under each option. Write a program that prompts the author to enter the net price of each copy of the novel and the estimated number of copies that will be sold. The program then outputs the royalties under each option and the best option the author could choose. $($Use appropriate named constants to store the special values such as royalty rates and fixed royalties.$)$

this is the code i have so far:

#include

#include

#include

namespace royaltyRates $\{$

const double OPTION$1\_$DELIVERY$\_$PAYMENT $=5000\mathrm{.}0$;

const double OPTION$1\_$PUBLICATION$\_$PAYMENT $=20000\mathrm{.}0$;

const double OPTION$2\_$ROYALTY$\_$RATE $=0\mathrm{.}125$;

const double OPTION$3\_$BASE$\_$ROYALTY$\_$RATE $=0\mathrm{.}10$;

const double OPTION$3\_$ADDITIONAL$\_$ROYALTY$\_$RATE $=0\mathrm{.}14$;

const int OPTION$3\_$THRESHOLD $=4000$;

$\}$

double calculateOption$1$Royalties$()\{$

return royaltyRates::OPTION$1\_$DELIVERY$\_$PAYMENT $+$ royaltyRates::OPTION$1\_$PUBLICATION$\_$PAYMENT;

$\}$

double calculateOption$2$Royalties$($double netPrice, int copiesSold$)\{$

return netPrice $*$ copiesSold $*$ royaltyRates::OPTION$2\_$ROYALTY$\_$RATE;

$\}$

double calculateOption$3$Royalties$($double netPrice, int copiesSold$)\{$

double baseRoyalties $=$ netPrice $*$ std::min$($copiesSold$,$ royaltyRates::OPTION$3\_$THRESHOLD$)*$ royaltyRates::OPTION$3\_$BASE$\_$ROYALTY$\_$RATE;

double additionalRoyalties $=0\mathrm{.}0$;

if $($copiesSold $>$ royaltyRates::OPTION$3\_$THRESHOLD$)\{$

additionalRoyalties $=$ netPrice $*($copiesSold $-$ royaltyRates::OPTION$3\_$THRESHOLD$)*$ royaltyRates::OPTION$3\_$ADDITIONAL$\_$ROYALTY$\_$RATE;

$\}$

return baseRoyalties $+$ additionalRoyalties;

$\}$

int main$()\{$

double netPrice;

int copiesSold;

std::cout $<<$ "Enter the net price of each copy of the novel: $"$;

std::cin $>>$ netPrice;

std::cout $<<$ "Enter the estimated number of copies that will be sold: $"$;

std::cin $>>$ copiesSold;

double option$1$Royalties $=$ calculateOption$1$Royalties$()$;

double option$2$Royalties $=$ calculateOption$2$Royalties$($netPrice$,$ copiesSold$)$;

double option$3$Royalties $=$ calculateOption$3$Royalties$($netPrice$,$ copiesSold$)$;

std::cout $<<$ std::fixed $<<$ std::setprecision$(2)$;

std::cout $<<$ "Royalty option$1$: $"<<$ option$1$Royalties $<<$ std::endl;

std::cout $<<$ "Royalty option$2$: $"<<$ option$2$Royalties $<<$ std::endl;

std::cout $<<$ "Royalty option$3$: $"<<$ option$3$Royalties $<<$ std::endl;

double maxRoyalties $=$ std::max$(\{$option$1$Royalties, option$2$Royalties, option$3$Royalties$\})$;

if $($maxRoyalties $==$ option$1$Royalties$)\{$

std::cout $<<$ "The best option is Option $1."<<$ std::endl;

$\}$ else if $($maxRoyalties $==$ option$2$Royalties$)\{$

std::cout $<<$ "The best option is Option $2."<<$ std::endl;

$\}$ else $\{$

std::cout $<<$ "The best option is Option $3."<<$ std::endl;

$\}$

return $0$;

$\}$

and this is the error code that i cant figure out how to get around. the first and third tasks pass, just not number $2.$

Status: FAILED!

Check: $2$

Test: Successful Output II

Reason: Unable to find $\text{'}[\text{'}$Royalty option$1$: $25000\mathrm{.}00\text{'},$ 'Royalty option$2$: $771604931\mathrm{.}25\text{'},$ 'Royalty option$3$: $864189523\mathrm{.}00\text{'}]\text{'}$ in the program's output.

Enter the net price of each copy of the novel: Enter the estimated number of copies that will be sold: Royalty option$1$: $25000\mathrm{.}00$

Royalty option$2$: $771604931\mathrm{.}25$

Royalty option$3$: $617283945\mathrm{.}00$

The best option is Option $2.$

$.$

Error : AssertionError $-$ Unable to find Royalty option$3$: $864189523\mathrm{.}00$ in the program's output.