Price of gold in 1989: ~2000 yen/g
Price of gold in 2024: 9,800 yen/g
Price of gold in 2024: 9,800 yen/g
Price of gold in 1989: ~$370 USD/oz
Price of gold in 2024: ~2000 USD/oz
The way this is handled is standard inflation adjustment based on things people actually use.