How much hydrocortisone powder is needed to compound 60g of hydrocortisone cream at 2.5%?

The correct answer is 1.5g, but I can%26#039;t figure out how to calculate this. Can someone show me how it is done?|||% (w/w) = (mass of solute / total mass) x 100


2.5 = (mass of solute / 60 g) x 100





mass of solute = 2.5 x 60 / 100 g = 1.5 g