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.
Weight Loss Percentage Formula. The formula to calculate your weight loss percentage is: lbs lost divided by starting weight. Then, multiply the result by 100. Example: (5lbs / 150lbs) * 100 = -3.33%. So, if your starting weight is 150lbs and you lost 5lbs, youâve lost 3.33% of your body weight.