4) Professional Service and Other: Professional service and other revenues consist of revenues from consulting contracts and contracts to provide implementation, training and integration services (professional services). Other revenues consist of hardware revenues, which are grouped within the “Professional service and other” category because they are relatively immaterial to our service revenues. Professional services are typically performed after the purchase of new software licenses. Professional service and other revenues can vary from period to period based on the type of engagements as well as those implementations that are assumed by our partner network. Cost of professional service and other revenues consists primarily of the costs of providing integration, configuration and training with respect to our various software products. The most significant components of these costs are personnel-related expenses, travel costs and third party subcontracting. Professional service and other revenues decreased by $31.3 million or 9.9% during the year ended June 30, 2019 as compared to the prior fiscal year; down 7.4% after factoring the impact of $8.1 million of foreign exchange rate changes. Geographically, the overall change was attributable to a decrease in Americas of $19.0 million, a decrease in EMEA of $9.0 million and a decrease in Asia Pacific of $3.3 million. Cost of Professional service and other revenues decreased by $28.8 million during the year ended June 30, 2019 as compared to the prior fiscal year as a result of a decrease in labour-related costs of approximately $29.0 million resulting primarily from a reduction in the use of external labour resources, partially offset by an increase in other miscellaneous costs of $0.2 million. Overall, the gross margin percentage on Professional service and other revenues increased to approximately 21% from approximately 20%. This is the result of effectively executing our strategy of optimizing margins by being selective about the professional service engagements we accept. Professional service and other revenues under proforma Topic 605 were not materially different from those under Topic 606 as discussed above.

Year Ended June 30,

(In thousands)	2019	Change increase (decrease)	2018	Change increase (decrease)	2017

Professional Service and Other Revenues:

Americas	$132,426	$(19,045)	$151,471	$39,872	$111,599

EMEA	122,861	(8,982)	131,843	29,601	102,242

Asia Pacific	29,649	(3,294)	32,943	11,468	21,475

Total Professional Service and Other Revenues	284,936	(31,321)	316,257	80,941	235,316

Cost of Professional Service and Other Revenues	224,635	(28,754)	253,389	58,435	194,954

GAAP-based Professional Service and Other Gross Profit	$60,301	$(2,567)	$62,868	$22,506	$40,362

GAAP-based Professional Service and Other Gross Margin %	21.2%	19.9%	17.2%

% Professional Service and Other Revenues by

Geography:

Americas	46.5%	47.9%	47.4%

EMEA	43.1%	41.7%	43.4%

Asia Pacific	10.4%	10.4%	9.2%

Question: What does Cost of professional service and other revenues consists primarily of?
Answer: costs of providing integration, configuration and training with respect to our various software products. The most significant components of these costs are personnel-related expenses, travel costs and third party subcontracting