Hi, don't know any website which calculates you total fare of ZED ticket including all taxes.
I use for it table with ZED fares, MileCalc for mileage (http://milecalc.com/) and Matrix (http://matrix.itasoftware.com) to see airport taxes.
Here are taxes and fares for your routing (I don't know if AF give you ZL or ZM or ZH, so you will have to calculate it):
1)ATL-CDG
Taxes-ATL: 23,1 USD
Fare (ZL/ZM/ZH): 57/82/138 USD

2)CDG-PUF
Taxes-CDG: 24,75 EUR = 32,1 USD
Fare (ZL/ZM/ZH): 21/32/39 USD

3)PUF-CDG
Taxes-PUF: 23,08 EUR = 29,9 USD
Fare (ZL/ZM/ZH): 21/32/39 USD

4)CDG-ATL
Taxes-CDG: 38,76 EUR = 50,2 USD
Taxes-USA: 17,5 USD
Taxes-total: 67,7 USD
Fare (ZL/ZM/ZH): 57/82/138 USD