If I overstay on June 2019 up to now how much will...

We would like to inform you that in regard to visitor and tourism visas, the UAE government issued a decision for those whose visas have expired starting from March 1, 2020, a one-month deadline for departure from July 11, 2020 to August 11, 2020 without imposing any fines on you, noting that this period is renewable for one time for a month and you must leave even if your status has not been modified, and then if the violation is committed, a fine will be imposed on you for each day of delay in the country.
In all cases you must review the General Administration of Residency for details.
He will not be allowed to leave the Emirates until after paying the fine