All fictional examples

BILL EXPLAINER / FICTIONAL EXAMPLE

Same rates. More electricity.

The period and rates stay the same. Consumption rises from 120 to 180 kWh.

CHANGE IN STATED TOTAL

+Rs 300.00

Higher than the previous fictional bill.

Previous example
Rs 660.00
Current example
Rs 960.00

Arithmetic matches the supplied fictional rules. This does not validate a real bill.

01 / ACCOUNT FOR THE DIFFERENCE

Where did the change come from?

The arithmetic explains a Rs 300.00 increase through additional consumption. It cannot identify an appliance, confirm a meter reading or explain why usage changed.

  1. Energy: consumption

    +Rs 300.00

    Current units minus that period-adjusted reference, at the previous rate.

    Fictional rule basis
Total change+Rs 300.00
Show 5 unchanged components

  1. Energy: billing period

    Rs 0.00

    Previous average kWh/day extended to the current period, at the previous rate.

    Fictional rule basis

  2. Energy: unit rate

    Rs 0.00

    Current kWh multiplied by the difference in unit rates.

    Fictional rule basis

  3. Fixed charges

    Rs 0.00

    Current days × current daily charge, minus previous days × previous daily charge.

    Fictional rule basis

  4. Documented demo credit

    Rs 0.00

    A credit subtracts from the total. Compare the two supplied credit amounts.

    Fictional rule basis

  5. Unexplained difference

    Rs 0.00

    Change in the gap between each stated total and its explained charges. Not a validated charge.

    Fictional rule basis

Allocation order: period at the previous daily average, consumption at the previous rate, then the rate change at current consumption. The period reference is rounded once to the nearest paise; consumption takes the remainder. This is an arithmetic decomposition, not a causal explanation of behaviour.

02 / NOTHING HIDDEN IN THE MATH

The supplied inputs.

One unit is one kWh in this demo. All amounts use integer paise. Each bill uses one flat rate for its entire period.

Previous example

Billing period
30 days
Consumption
120 kWh
Daily average
4.00 kWh/day
Energy
120 × Rs 5.00 = Rs 600.00
Fixed charge
30 × Rs 2.00 = Rs 60.00
Demo credit
Rs 0.00
Explained charges
Rs 660.00
Stated total
Rs 660.00
Unexplained amount
Rs 0.00
BB-DEMO-1 / BASE rules

Current example

Billing period
30 days
Consumption
180 kWh
Daily average
6.00 kWh/day
Energy
180 × Rs 5.00 = Rs 900.00
Fixed charge
30 × Rs 2.00 = Rs 60.00
Demo credit
Rs 0.00
Explained charges
Rs 960.00
Stated total
Rs 960.00
Unexplained amount
Rs 0.00
BB-DEMO-1 / BASE rules
Bindass Bol

Fictional bills and rules. Not valid for any real electricity bill.

More consumption: +Rs 300.00

Rs 660.00 → Rs 960.00. The arithmetic explains a Rs 300.00 increase through additional consumption. It cannot identify an appliance, confirm a meter reading or explain why usage changed.

Question to ask: Were both readings actual readings, and what dates and meter readings were used?

Synthetic example: more-consumption. Rules BB-DEMO-1, authored 5 October 2026 by Bindass Bol. No provider affiliation or real-bill verification.

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