Use Boyle's law to find P1... read on please

Use Boyles Law to find P1 given:
V1= 2X10^5 mL
V2= 2.7X10^3 mL
P2= 178 mm Hg
Answer in units of mm Hg please!
*I tried this problem like 4 times and still got it wrong, please help!

P1V1 = P2V2

P1 * ( 200 L) = 178 mmHg * ( 2.7 L)

P1 = [178 mmHg * ( 2.7 L)] / 200 L

P1 = 2.4 mmHg