Example:[br][br]Calculate 52% of 420.[br][br] First, notice that 52% is over a half. Our answer should be over a half of 420. It should be more than 210.[br][br]52% is a portion of 100.[br][br][math]52\div100=0.52[/math] is a portion of 1.[br][br]We need that portion of 420, so to complete our calculation we do:[br][br][math]52\div100\times420=218.4[/math][br][br]Our answer is 218.4[br][br]