There is a key formula for arbitrage, that is, what is sold is expensive and what is bought is cheap. As long as the exchange rate is not equal to one, there must be opportunities (regardless of commission payment). The following is an example of arbitrage with pounds.

1 sold in the London market at the price of 1.6435/pound and got 1 .6435 Swiss francs.

Secondly, the franc was sold in Zurich at the price of 0.2827, which was1.6435/0.2827 = 5.8136 Singapore dollars.

Then I bought the pound at the price of 5.6680 in Singapore market, and got 5.8136/5.6680 =1.0257.

Finally, subtract 1 from your original cost, and your profit is 0.0257.

Similarly, you can use this method to calculate Swiss francs and Singapore dollars respectively. Both can be set because the flight is not 1.

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