Assets:
NT's UK pensions:
#1: 17,105 pounds ($27,368)
#2: 20,501 pounds ($32,801)
#3: 4,452 pounds ($7,123)
NT's 401(k): $36,077
NT's Roth IRA: $6,906
AS's trad. IRA: $13,845
AS's Roth IRA: $22,484
AS's SEP IRA: $4,706
CJ's 401(k): $75,895
CJ's Roth IRA: $9,835
NT's flat: 180,000 pounds ($288,000)
CJ/NT/AS house: $440,000
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Total Assets: $965,040

Total Debt: $485,706

Current Estimated Net Worth: $479,334

August 2015 estimate: $486,035

Change in net worth: -$6,701

Summary: Despite dumping a couple thousand into retirement and paying off nearly a thousand of debt, our net worth is down -- more than doubly as bad as the $2800 dip we suffered from July to August. We've now lost nearly $10K in net worth value over two months. For a short while, our assets were worth more than twice our debt amount. That is no longer the case, since our net worth is now less than our debt amount.

Notes on the numbers above: House value estimates are approximate. I don't have a way to check NT's UK pensions or flat value, so their values stay static for the purpose of this update (unless I happen to get some info by chance). UK asset values and debt amounts are calculated figuring $1.60 for every British pound.