cholesterol has little effect on cholesterol biosynthesis,ratios of lipoproteins or other metabolic factors.
high sat fat and sugar would increase cholesterol and ldl which brings chol from the liver to the tissues for steriodogenesis, also lowering hdl which actually decreases serum cholesterol via centripedal transport which brings excess cholesterol to the liver for destruction.
the bottom line is dont worry about cholesterol so much and sugar and unhealthy fats more so.