The calculator from your brief, working. This is the same block that goes into your ClickFunnels page.
Test case from the brief: income group 4, bank use 50%, outage losses 5%, permit days 30. Expected 59.918.
Predicted rank = 35.187 + (11.284 × Income Group) − (0.676 × bank usage %) + (1.593 × outage losses %) + (0.181 × permit days)
Inputs are checked before calculating: permit days 0 or more, both percentages 0 to 100. The result shows to three decimals, with a strong, average or weak band and a marker on the 1 to 190 scale. If a combination lands above rank 1 or past 190, the exact number still shows with a plain note.