The formulas which shall be used to calculate the tindustrywide annual rate of return on motor vehicle insurance written in New York for the period 1974-1983 follow:
(UNDERWRITING GAIN RATIO* NYx EARNED PREMIUM CTY)
+ INVESTMENT GAIN CTY
- DIVIDENDS TO POLICYHOLDERS CTY
- FEDERAL TAX CTY
- ADJUSTED FEDERAL TAX
(.46 x UNDERWRITNG GAIN RATIO* NYx EARNED PREMIUM CTY)
- (.46) x (UNDERWRITING GAIN CTY)
+ (1 - .46) x (UNDERWRITING GAIN RATIO* NYx EARNED PREMIUM CTY)
- (.46) x (UNDERWRITING GAIN CTY)
* for Automobile (Motor Vehicle) Insurance only.
N.Y. Comp. Codes R. & Regs. Tit. 11 §§ 166-1.6