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