Calculate value and price change
Entry value equals units × entry price. Stressed value equals units × stressed price. Profit or loss equals stressed value minus entry value, and the percentage price change equals (stressed price ÷ entry price − 1) × 100. A depeg decline can also be expressed as (1 − stressed price ÷ entry price) × 100. This tool measures deviation from the entered reference, which need not equal one dollar.
Compare losses from two reference prices
For a hypothetical 10,000-token balance entered at $1.00 and stressed to $0.94, initial value is $10,000 and scenario value is $9,400. The loss is $600, or 6%. If the same units were entered at $0.98, their entry value would be $9,800 and loss $400, approximately 4.08%. The stressed balance is identical; changing the cost reference changes the measured return.
Keep valuation separate from realizable proceeds
The model applies one stressed price to every token and keeps quantity fixed. It excludes withdrawal restrictions, spreads, market depth, redemption fees, accrued rewards, and taxes. Entry price must be positive to define a percentage change; stressed price may be zero for a total-value-loss scenario. A quoted or assumed price does not guarantee that the entire position could be sold at that level. Multiple stablecoins should be modeled with their own quantities and prices.