Interest Calculator

name: "Interest Calculator"
short_description: A compound-interest calculator with principal, rate, and term inputs.
long_visual_description: >
  A panel with a prominent final-balance result and inputs for principal (slider), rate, and
  years; the balance updates live.

use_cases:
  - Compound interest estimate.
  - Savings growth calculator.
  - Investment projection.
  - Return calculator.
  - Growth-over-time tool.

recommended_for:
  - A compound-interest / growth calculator.
avoid_for:
  - A loan payment calculator (use mortgage-calculator).

markets:
  - Global

example_usage: >
  The behavior compounds annually (P(1+r)^n) live; the initial result is the server-precomputed
  value.

props:
  principal: The starting principal.
  rate: The annual rate percent.
  years: The term in years.
  result: The initial final balance.

example_prompts:
  - "Add a compound interest calculator."
  - "Add a savings growth projection tool."

lifecycle: experimental
content_model: Interest inputs and a live final-balance result.

theming:
  tokens_used:
    - --color-surface
    - --color-surface-raised
    - --color-on-surface
    - --color-on-surface-muted
    - --color-primary
    - --color-border
    - --radius-card
    - --radius-control
    - --shadow-card
    - --font-heading
    - --space-card

editorial_guidance: >
  Default to representative values; show the final balance prominently.

categorization:
  category: Finance
  subcategory: Tools
  atomic_type: organism
  usage_type: [form, stat]
  maturity: ai-generated
  wcag:
    level: AA
    notes: Inputs have associated labels; the result updates live. Native fields are keyboard-operable.
  keyboard_support: All inputs are focusable and adjustable via the keyboard.
  seo_score: 30
  text_direction: both