pre_text: Our net sales by offering category for APAC for 2019 and 2018, were as follows (dollars in thousands): Net sales in APAC decreased 4% (increased 2% excluding the effects of fluctuating foreign currency rates), or $6.7 million, in 2019 compared to 2018. In APAC, increases in hardware and services net sales year over year were offset by a decrease in software net sales during 2019 compared to 2018. The changes were the result of the following: • Continued expansion of hardware offerings in the APAC market resulted in higher net sales in this category. • Continued trend toward higher sales of cloud solution offerings that are recorded on a net sales recognition basis in the services net sales category resulted in declines in the software net sales category. • Higher volume of net sales of cloud solution offerings and software referral fees that are recorded on a net sales recognition basis positively impacted services net sales. Additionally, there were contributions from Insight delivered services from increased net sales of our digital innovation solutions offering.
table: APAC
table: Sales Mix 2019 2018 %Change
table: Hardware $34,965 $29,496 19%
table: Software 92,988 107,363 (13%)
table: Services 52,288 50,055 4%
table: $180,241 $186,914 (4%)
question: Analyse this data from a financial earnings document. What is the change in Sales Mix of Software between 2018 and 2019?