odometer fell

Good for everyone, I am a user of 98 model 306 griffe, the battery was exhausted. We had to add reinforcements after working, did anyone know the general mileage of the vehicle dropped to 9800? thanks for what reason

normally fled? I wonder if the previous owner made a transaction?

Normally it was 129.000 and after doing some km, I put the battery title in my mind because it stuck to the same number.