The margin of victory shall be calculated as follows based on the margin type.

• For percentage points: the vote percentage received by Keiko Fujimori minus the vote percentage received by the candidate/party/option that finishes immediately behind Keiko Fujimori if Keiko Fujimori wins, or the candidate/party that finishes first if Keiko Fujimori loses.
• For raw votes: the total votes received by Keiko Fujimori minus the total votes received by the candidate/party/option that finishes immediately behind Keiko Fujimori if Keiko Fujimori wins, or the candidate/party/option that finishes first if Keiko Fujimori loses.
• For electoral votes: the electoral votes received by Keiko Fujimori minus the electoral votes received by the candidate/party/option with the second-most electoral votes if Keiko Fujimori wins, or the electoral votes received by Keiko Fujimori minus the electoral votes received by the candidate/party/option with the most electoral votes if Keiko Fujimori does not.

Each margin range is inclusive of its lower bound and exclusive of its upper bound. No rounding shall be applied to the calculated margin. For example, for consecutive ranges of 5-6% and 6-7%, a margin of 5.99999% resolves within the 5-6% range, while a margin of exactly 6% resolves within the 6-7% range. If Keiko Fujimori runs under multiple parties or is listed multiple times, votes attributable to the same underlying natural Keiko Fujimori will be summed.

If Keiko Fujimori wins the election, the margin will be positive. If Keiko Fujimori loses the election, the margin will be negative. If Keiko Fujimori ties for first place, the margin shall be 0. For uncontested races where Keiko Fujimori is the only candidate, the margin shall be 100 percentage points or the total number of votes cast (for raw votes).