d$.$ Using the principles in a sensitivity budget, what would Paul have to charge to perform only $75$ haircuts and still reach his $$450$ profit per month?

e$.$ How many haircuts must be done to make $$600$ profit per month, assuming he charges $$15$ per haircut?

f$.$ For data analytics and visualization, create a pie chart to analyze Paul's expenses.

g$.$ In the predictive analytics performed in steps $($b$)$ to $($e$),$ what other nonfinancial information would be useful for decision making?