Card Growth & Cash – 90-Day Expiry + Annual Base Fee

This calculator was provided by Valentin Dobler

Settings

Years 3

Base fee ($) 1000

Starting Cards (Start) 6

Cost per new card ($) 418

Initial-Investment

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Total Days

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Total Base tax

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Active cards (End)

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Growth factor growth_rate = 1.18
Cycle period_days = 90 → daily return per card: (salary_cost * growth_rate) / 90
Recruitment delay: 3 days
Max. cards: 30
Cards automatically expire after 90 days.
Base fee only 100 / 300 / 1000 $, deducted each year (in the chart starting from year 1).