You see the PTO balances on the device in the Balances screen of the Paid Time Off tab,

You see the details of Available Days, No. of PTO days pending for Approvals, and the total PTO days that you had in the current year.

The counts on the balances screen show the number of PTO available, approved and the total counts for each PTO types

e.g: Sick, Personal, Vacation, Others.