Sold 1 lot of 620 CE at 1.6
Sold 1 lot of 530 PE at .7
Total points gained = (1.6+.7) = 2.3
lot size = 1000
total profit would be = 2.3*1000 = 2300
Upper BEP = 620 + 2.3 = 622.3 ~~ 622
Lower BEP = 530 - 2.3 = 527.7 ~~ 528
We will get whole money if it expires b/w = 530-620