In Reply to: Rupiah.. How is the best way to remember posted by Diddles on Wednesday, 28. March 2012 at 17:23 Bali Time:
if exchange rate is around 9,750 which is close enough to 10,000 a quick and easy guide to try:
10,000 = $1
30,000 = $3
70,000 = $7
150,000 = close enough to $15
200,000 = close enough to $20
The extra few cents dont matter that much.