A post office, named Brennen, was located in the limits of present-day Grove in 1888, but the city was not incorporated until the 1890s, Rose Stauber, Grove, Encyclopedia of Oklahoma History and Culture, making it the only incorporated town in Delaware County when Oklahoma became a state.
To calculate the mass percent or weight percent of a solution, you must divide the mass of the solute by the mass of the solution (both the solute and the solvent together) and then multiply by 100 to change it into percent.
Re: convert weight percentage. Weight %: If you have 100 grams total, then the weight% of the component you are looking at is the grams. So for 10 weight% fat, there is 10grams of fat for every 100grams of total. This is the same as 100g of fat per kilogram. This weight% applies to any substance, sugar, salt, whatever.