Its only a decline in Dollar terms, not purchasing power tbf.
if he were in Pakistan or some global South country, a 40% depreciation would (likely) mean a 40% reduction (maybe more) in purchasing power but its not 1:1 with Japan (and China, Russia, most Western countries).
Its only a decline in Dollar terms, not purchasing power tbf.
if he were in Pakistan or some global South country, a 40% depreciation would (likely) mean a 40% reduction (maybe more) in purchasing power but its not 1:1 with Japan (and China, Russia, most Western countries).
spoiler
What is CPI?
Edit: Consumer Price Index
Maybe he had investments that were affected by it.