To calculate the total cost including the tip, start by calculating the tip amount based on the cost of the haircut.
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Calculate the tip:
- Tip = Haircut cost × Tip percentage
- Tip = $13.99 × 0.20 = $2.798
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Round the tip to the nearest hundredth:
- Rounded tip = $2.80
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Calculate the total cost:
- Total cost = Haircut cost + Tip
- Total cost = $13.99 + $2.80 = $16.79
Therefore, Kyrian's total cost is $16.79.