0.068 and 0.07 NO big Deal la! 100000 yen = 7000 only HK200 diff. use more credit card la may be the rate better!
We've been to Shinjuku in Oct rate = 6.7 ; in Dec end to Okinawa = 6.9 ~7.0.
But Credit card charge = 6.905. I remember in April to Sendai only 6.5 jar.