Here is the week 43 update in terms of the two big consoles in Japan's path to be able to reach the commonly stated (in these sales threads) estimates for 2018 sales (2 mil for PS4, 4 mil for Switch) .
TWS - This week's sales
GD - Goal differential, the difference between the average week needed from last week compared to this week's sales
YTD - Units sold in 2018 so far including this week's sales
AWN - Average weekly sales needed to reach the estimate for the console.
As we get closer and closer to the end of the year the Math gets more punishing for not making the AWN. Both consoles are down from last week. 2 more weeks until the Pokemon/Smash bundle to see just how much the Switch can make up in that big week.