This YER To STD Exchange Rate Chart lets you see this pair's currency rate history for up to 90 days
Live forex chart for Yemeni Rial to Sao Tomean Dobra
The above chart show the exchange rate of 1 YER to STD. If the chart run up, it means Yemeni Rial appreciates against Sao Tomean Dobra. If the chart run down, it means Yemeni Rial devalues against Sao Tomean Dobra.