The previous and the current water reading for the month of june 594.073 cubic meters is and july is 527.070.What is the water consumption for the month of june?

The answer is c because you turn 17.5% into a decimal which gives you .175 then you times that by $361.35 which gives you 63.23625 but then you round that which gives you 63.24. then you at 63.24 pulse 361.35 and you round it which gives you $425