Change to a percentage

Question

Joshua has enough tins of paint to cover a total surface of 320 squared meters he needs to paint a community hall with an area to be painted of 275 square meters calculate the percentage of paint that should be left over give your answer to 1 decimal place

Answer 1

He used 275/320=55/64×100=85.94% approx, so 100-85.94=14.06% remains. This is 14.1% to 1 decimal place.