Value &1 is too high for multiplying it with price block of price &2

What causes this issue?

In the variant, the price blocks are to be multiplied by a value. The
value is so high, however, that the multiplication results in a value
that exceeds the maximum value for the block.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check whether the specified value is plausible. If necessary, correct
the value before you execute billing again.

Error message extract from SAP system. Copyright SAP SE.