Some drafters use 100% when it would be simpler to use all or some other alternative.
The Guarantor proposed to distribute to its shareholders 100% of the
[read all] outstanding shares of the Company’s common stock.
… an Issuing Bank will not be required to issue, amend, or increase any Letter of Credit unless it is satisfied that the related exposure will be 100% [read fully] covered by the Commitments of the non-Defaulting Lenders . . .
Similarly, simplicity favors using half rather than 50%, as in “50% [read half] of the shares” and “50% [read half] of the members of the Company’s board of directors.”