Salon service price change communication list calculator

Calculate communication list [booking,applied price,difference] and total affected booking price increase with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Choose the currency for these amounts. Changing it keeps your numbers and does not convert exchange rates.

Use communication list [booking,applied price,difference] and total affected booking price increase to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Bookings [ID,service ISO date,old price currency,new price currency,honor old boolean]; enter JSON (USD)
[["A","2026-11-01",50,55,true],["B","2026-11-10",70,80,false]]
Price effective date (ISO date)
2026-11-05
Communication list [booking,applied price,difference] (JSON) (USD)
[["B",80,10]]
Total affected booking price increase (USD)
$10.00

Try another scenario

Bookings [ID,service ISO date,old price currency,new price currency,honor old boolean]; enter JSON (USD)
[["A","2026-11-07",50,60,false],["B","2026-11-10",70,85,true]]
Price effective date (ISO date)
2026-11-05
Communication list [booking,applied price,difference] (JSON) (USD)
[["A",60,10]]
Total affected booking price increase (USD)
$10.00
Calculation method

Calculation method

Communication list [booking,applied price,difference] (JSON) (USD)

Affected if service date>=effective and not honored; output only affected rows with new price and new−old difference.

Total affected booking price increase (USD)

Sum new−old prices for affected bookings.

Symbols and units
a
Bookings [ID,service ISO date,old price currency,new price currency,honor old boolean]; enter JSON (USD)
b
Price effective date (ISO date)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Existing booking price honors are explicitly entered; effective date compared with service date, without consent or communication delivery. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. All numeric values must be finite. Lists contain at most 100 records; required lists must be nonempty. Rates, probabilities and fractions are entered as fractions, not percentages; fractions must be between 0 and 1. Use a single consistent user-selected currency for all amounts; no exchange-rate conversion.
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