This has not been reported by the organisation
The report contains two different data for total employees in its Sustainability Report. As the company reports 94,111 value as its total employees in its annual report also hence considering that value.
99% of its employees are full-time i.e. 1% is part-time
(1% of 94,111 = 94111*1/100 = 941.11)
Annual Report 2017, pg. 16
"The total number of employees working in Koç Holding, its subsidiaries and business partnerships stood at 94,111 as of the end of 2017."
pg. 27, Sustainability Report
" Koç Group is the largest employer in Turkey with 94,111 people as of end of 2017. 99% of our employees work full time."
pg. 68, Sustainability Report
"2017 Full-time 72,269, 175 Part-time 521 Total 72,790"