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.
Pretty simple. In order to figure out your total weight, just figure out how much fat you want to have on your body given your maximum LBM. For example, if you had an LBM max of 160lb with 10lb of fat, you would have a total body weight of 170lb and a body fat percentage of 6% (10lb of fat divided by 170).