Total Assets > Liabilities means you have a Net Asset Exposure to foreign exchange movements. A depreciating foreign currency means net asset is worth less than it used to before in local currency (which is a loss). On the other hand, if you have a Net Liability Exposure (total liabilities > assets), then a depreciating currency would help you because your liabilities are worth less in local currency.
For example: you, a company set in US, own foreign activities in Europe with A and L at 100 Euros and 80 Euros giving you a net 20 Euro asset exposure. Assuming the exchange rate for EUR/USD goes down from 1.2 to 1.0 (euro, the foreign currency, depreciated)
Before depreciation: Net exposure in USD is 24 (you have a net asset position at 24 USD)
After depreciation: Net exposure in USD is 20 (you have a net asset position at 20 USD).
You “lost” 4 USD simply because of the depreciation of EUR/USD.
the reverse also apply to Net Liability Exposure.
Under Temporal method, Monetary A and L are translated using the most recent rate (current). if the foreign currency is depreciating, the same idea applies as point number 1. Non-monetary A and L are translated at the historical rate on the date of purchase so forex movement do not impact them.
Because you have a net asset on the investee balance sheet. The foreign currency is depreciating so when you convert to the parent balance sheet, you will have a lower number, which result in a loss. If it is a net liability, then you will have a gain since your liability will be lower after translation