I am slightly confused why my attempt isn't working. For EL I have set up the following equation: 1.4 (RoC) = 1.12P / CP, where P = premium & C = capital as a % of premium This comes out as C = 80% of premium which is wrong. Can anyone spot where I am making a mistake?
You seem to have an extra 1. in front of both of your expressions: RoC = profit / capital = 40% and profit / premium = 12% Thus substituting for profit we get: 40% = (12% * premium) / capital thus capital = 30% premium