100% hike

one day, I heard about smokeless soodam - It will not give out smoke when burnt. It seems it is little costlier than the normal soodam. The cost of this smokeless soodam is 1 Re whereas the same quantity of normal soodam is 0.5 Re. Hence only 0.5 Re costlier. But if you see this with business eye, smokeless soodam is 100% more costlier than the normal soodam!! It is really more costly.