### How to keep 2 decimal places

There are many ways to keep two decimal places, for example, the result of the calculation is 2089.984

Rounding method: 2089.98. If the third decimal place is greater than or equal to 5, then round off the third and the subsequent data, and add one to the second decimal place; otherwise, round off the third and the subsequent decimal places, and the second decimal place remains unchanged.

Forward by one: 2089.99. If the third decimal is greater than 0, then the third and subsequent digits are discarded and the second decimal is added by one

Deletion: 2089.98. No matter what happens to the third and subsequent digits, otherwise, the third and subsequent digits are discarded and the second decimal remains unchanged.

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