In addition to the uncertainty of the value, there's also the context of how it will be used. E.g. for some quick business decision that needs to be made, it ma

In addition to the uncertainty of the value, there's also the context of how it will be used. E.g. for some quick business decision that needs to be made, it may be fine to round to 1 sig fig, e.g. 71.244% -> 7/10 -> the majority.