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Tip from Net Price Calculator

Find a tip based on the pre-tax (net) price.

Calculated Output

Net price 60

Tip on net 10.8

Grand total 76.8

Formula: net = total / (1 + tax/100); tip = net * tip%/100

Step-by-Step Breakdown

1. Values used:

2. Total bill (with tax) = 66

3. Tax rate = 10 %

4. Tip = 18 %

6. Net price = 60

7. Tip on net = 10.8

8. Grand total = 76.8

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The math behind it

First strip the tax: net = total / (1 + tax%). Then tip = net x tip%.

$66 total at 10% tax has a $60 net; an 18% tip is $10.80.

Why tip on net?

Tax isn't part of the service, so tipping on the pre-tax amount is common.