About this app
This is a specialist calculator for combining permanent impairments using the formula A+B(1-A), for the sole purpose of calculating medical reports based the The American Medical Association's AMA Guides to the Evaluation of Permanent Impairment. WARNING! This app is of no use to anyone else. Features: Combine two or more imp% with the A+B(1-A) formula. example 1: '33 ƒ(c) 21 =' 47 IMP% example 2: '28 ƒ(c) 15% ƒ(c) 21 =' 52 IMP% Add and then combine imp%. example: '15 + 21 ƒ(c) 48 =' 67 IMP% Subtract impairments, in the case of amputation and sensory loss of the same digit. Calculates an IMP% through to whole person impairment for both the upper and lower extremities. example: '47 WPI' displays, index finger 47% as hand = 9%, as upper extremity = 8%, as whole person = 5% Option to view decimal or rounded values. Calculate your own decimal percentage values with 'x', '%', '.' buttons. Records calculations in a list, like a paper roll, as a reference to prior values. WARNING! This app DOES NOT have a DIVIDE function, because it is not used in calculating impairment reports. This App IS NOT associated with or endorsed by The American Medical Association. AMA Guides™ is a trademark of the American Medical Association. Before using this App for medico legal purposes, the user should verify, through comparison with their own calculations, that the scope and accuracy available from the App is sufficient for their needs, including any additional requirements that may apply for their local jurisdiction.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 7:14 AM Free
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