Stan has an income of £2000 a month.
He spends 25\displaystyle \frac{2}{5}52 of his income on rent.
He spends 320\displaystyle \frac{3}{20}203 of his income on bills.
He spends 110\displaystyle \frac{1}{10}101 of his income on food.
Stan saves the rest of his income.
Work out how much Stan saves each month.
