Order completion rate decrease without any reason

[change_maker]

Yesterday my order completion rate decreased by 89% to 83%. Though I didn’t do any project within the previous weak. Also, noticed this type of problem previously 3-4 time. Is this something happening for bug or lag related issues or for anything else?

[ahmwritingco]

Order completion rate is calculated over a 60-day period. Your stat has probably changed because past orders that were bumping it up have fallen outside of the 60-day period.