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Reverse Tax Calculator — Find Pre-Tax Price from Total

Technical reference documents covering the formulas, methodology, and data behind Reverse Tax Calculator — Find Pre-Tax Price from Total. Use these to understand exactly how calculations are performed.

Reverse Sales Tax Formula — How It Works

The math behind reverse tax calculation — why dividing by (1 + rate) gives the correct pre-tax price, and the common mistake of multiplying by the rate.

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