TRANSPARENCY
Calculator examples you can check by hand
These simple examples show the core math behind several JippyVest tools. They are intended to make the calculations easier to inspect, not to serve as an audit, certification, investment recommendation, or guarantee of a real-world outcome.
When a calculator includes changing prices, projected growth, taxes, or dividend assumptions, it is a scenario model. The figures below intentionally use simple inputs so the arithmetic is transparent.
Stock profit calculator
After-fee profit: $650 − $2 sell commission − $500 share cost − $2 buy commission = $146.
Return: $146 ÷ $502 total cost basis = about 29.08%.
Average-cost calculator
Buy 10 shares at $50, then another 10 shares at $70, with no commission.
($500 + $700) ÷ (10 + 10) = $60 average cost per share
The total invested is $1,200 and total shares are 20. The calculator’s average cost is the total cost divided by total shares.
Compound-growth calculator
Start with $1,000, add no monthly contribution, assume a 10% annual return, and select annual compounding for two years.
$1,000 × (1 + 0.10)2 = $1,210
The modeled growth is $210. Changing the compounding frequency or adding contributions creates a different scenario.
Dividend-reinvestment calculator
Start with 100 shares at $50, assume a $2 annual dividend per share, no price change, no dividend growth, no tax, and choose to take dividends as cash for one year.
100 shares × $2 annual dividend = $200 dividends before tax
The share value remains $5,000 in this simplified example. If the $200 is kept as cash, the ending portfolio value is $5,200. If it is reinvested, the precise ending share count depends on the modeled reinvestment price and payout timing.
Keep checking the assumptions
Before relying on a result, check the inputs, confirm which values are estimates, and compare against your brokerage statement or another independent calculation when appropriate. Read the methodology for data-source and rounding notes, or contact us if you spot a possible calculation problem.
EXPLORE A SCENARIO
Use your own inputs
Each calculator is meant for exploration. Results are hypothetical and change when the assumptions change.
Open the stock profit calculator