Author: r921

Weighted Average Method (Calculation of Stock Acquisition Cost)

Tax Answer No. 1466: Purchasing the Same Stock or Similar Securities on Two or More Occasions This simulation calculates the acquisition cost using a method similar to the weighted-average method.

Progressive Calculation (Calculation of Deduction Amounts)

This is the calculation of tax brackets used in quick reference tables for progressive taxation, where tax rates vary by income bracket.

Stamp Tax (Type 1, etc.)

Calculating the stamp tax amount.

Consumption Tax (Tax Rate Conversion)

Calculation of the total price when the tax rate for food and other items, which are priced at 8% or 10% including consumption tax, is changed to 1% or another rate.

Precious Metal Prices (in U.S. dollars)

Converted from precious metal prices traded in overseas markets (in U.S. dollars per troy ounce) and exchange rates to domestic prices (in yen per gram)

Shopping (buying small items)

This is a calculation for purchasing small items by the piece.

Lottery (Group Purchase)

We will distribute the profits earned from group purchases as dividends in proportion to each participant's investment.

Withdrawals from Bank Accounts Before the Division of an Estate

A system that allows funds to be withdrawn from the decedent’s bank accounts prior to the distribution of the estate to cover unexpected expenses, such as funeral costs

Stamp Point Calculation

Counting the number of stickers collected to enter a giveaway

Lotto (Quick Pick)

Number-selection lottery

mutually prime

For a given natural number N, list the natural numbers (in the range from 2 to N-1) that are relatively prime.

Average round-trip speed

If you travel the same distance back and forth at different speeds, why isn’t the average speed equal to the sum of the two speeds divided by two?

How to Read Large Numbers

Here's how to read large numbers using the ten-thousand-unit system.

Random number (integer)

This calculator uses a random number function to generate random integers within any specified range and in any quantity.

Construction Fortune-Telling

Determine whether a project qualifies for a construction contract in a game-like manner.

Folded in half, double-sided printing

This shows the page order and layout for double-sided printing on folded materials such as brochures and newspapers.

Life Experience Index

Using the reciprocal of age, as per Janner’s law, to represent the perceived passage of time by age is too extreme, so I devised a formula that uses the reciprocal of the square root of age to calculate a more gradual rate of life progression.