subscription cost of subscription revenue consists of third-party royalties and expenses related to operating our network infrastructure , including depreciation expenses and operating lease payments associated with computer equipment , data center costs , salaries and related expenses of network operations , implementation , account management and technical support personnel , amortization of intangible assets and allocated overhead .
we enter into contracts with third-parties for the use of their data center facilities and our data center costs largely consist of the amounts we pay to these third parties for rack space , power and similar items .
cost of subscription revenue increased due to the following : % (  % ) change 2014-2013 % (  % ) change 2013-2012 .

% Change2014-2013
% Change2013-2012
Data center cost
10%
11%
Compensation cost and related benefits associated with headcount
4
5
Depreciation expense
3
3
Royalty cost
3
4
Amortization of purchased intangibles
—
4
Various individually insignificant items
1
—
Total change
21%
27%

cost of subscription revenue increased during fiscal 2014 as compared to fiscal 2013 primarily due to data center costs , compensation cost and related benefits , deprecation expense , and royalty cost .
data center costs increased as compared with the year-ago period primarily due to higher transaction volumes in our adobe marketing cloud and creative cloud services .
compensation cost and related benefits increased as compared to the year-ago period primarily due to additional headcount in fiscal 2014 , including from our acquisition of neolane in the third quarter of fiscal 2013 .
depreciation expense increased as compared to the year-ago period primarily due to higher capital expenditures in recent periods as we continue to invest in our network and data center infrastructure to support the growth of our business .
royalty cost increased primarily due to increases in subscriptions and downloads of our saas offerings .
cost of subscription revenue increased during fiscal 2013 as compared to fiscal 2012 primarily due to increased hosted server costs and amortization of purchased intangibles .
hosted server costs increased primarily due to increases in data center costs related to higher transaction volumes in our adobe marketing cloud and creative cloud services , depreciation expense from higher capital expenditures in prior years and compensation and related benefits driven by additional headcount .
amortization of purchased intangibles increased primarily due to increased amortization of intangible assets purchased associated with our acquisitions of behance and neolane in fiscal 2013 .
services and support cost of services and support revenue is primarily comprised of employee-related costs and associated costs incurred to provide consulting services , training and product support .
cost of services and support revenue increased during fiscal 2014 as compared to fiscal 2013 primarily due to increases in compensation and related benefits driven by additional headcount and third-party fees related to training and consulting services provided to our customers .
cost of services and support revenue increased during fiscal 2013 as compared to fiscal 2012 primarily due to increases in third-party fees related to training and consulting services provided to our customers and compensation and related benefits driven by additional headcount , including headcount from our acquisition of neolane in fiscal 2013. .

Question: Analyse this data from a financial earnings document. from the years 2014-2013 to 2013-2012 , what was the change in percentage points of data center cost?
Choices:
-1.0
21
-11
5
1
Correct choice index: 0