720/721 = ≈99.86%
Rounded to 2 decimal places.
A value like 720/721, or about 99.86%, can describe an almost perfect success rate. For example, it could represent 720 working products out of 721, nearly all messages delivered, or a very high attendance rate.
To picture it quickly, imagine a group of 721 items with just one missing or unsuccessful item. Since 720 is only one less than 721, the fraction is extremely close to 100%, but not exactly equal to it.
A common mistake is rounding 99.86% to 100% and treating the two values as identical. That tiny difference can still matter when the total number is large, such as in quality control, test results, or safety records.
