3 ms·> Less than 1/100th of 1%. ?? 1 in 1500 is 1/15th of 1%, which is more than 1/100th of 1%...by sokoloff 2y ago> Less than 1/100th of 1%. ?? 1 in 1500 is 1/15th of 1%, which is more than 1/100th of 1%...