Mathematical Basis & Formula Guide
This calculation model operates directly using continuous mathematical equations:
Tax = Net Price x Tax Rate; Total = Net Price + Tax.
Calculations are computed locally on your device with high-precision 64-bit IEEE floating-point arithmetic. No financial or personal parameters are transmitted to any remote analytics or storage server.
Frequently Asked Questions
Divide the gross total by (1 + Tax Rate / 100) to find the original pre-tax amount.