Cumulative % retained is recorded to the nearest what?

Cumulative percentage retained is typically recorded to the nearest tenth of a percent. This level of precision is important in aggregate testing as it allows for a more accurate assessment of the material's gradation, which influences the performance of the mixture in construction applications. Recording to the nearest tenth ensures that subtle differences in material sizes, which affect the workability, strength, and durability of the concrete or asphalt, are captured in the data. Using a finer precision, like hundredth of a percent, may not be necessary for practical purposes in this context and could overcomplicate the reporting process without providing significant benefits in most cases. Similarly, rounding to a whole percent or a quarter percent may lead to loss of important detail in the grading analysis.