First Quarter of

    (Dollars in millions)

2017

    Cost of sales

$    1.0

    Research and development

2.4

2.3

    Sales and marketing

2.2

2.0

    General and administrative

8.3

8.4

$  13.7

( D )

( E )

Acquisition / divestiture items. Included in our GAAP presentation of operating expenses, acquisition costs consist of external and incremental costs resulting directly from merger and acquisition and strategic investment activities such as legal, due diligence, and integration costs, as well as adjustments to the fair value of earn-out liabilities.  Included in our GAAP presentation of non-operating income (expense), net, acquisition / divestiture items includes unusual acquisition, investment, and/or divestiture gains/losses. Although we do numerous acquisitions, the costs that have been excluded from the non-GAAP measures are costs specific to particular acquisitions. These are one-time costs that vary significantly in amount and timing and are not indicative of our core operating performance.

( F )

Executive transition costs. Included in our GAAP presentation of operating expenses are amounts paid to the Company's former CFO upon his departure under the terms of his executive severance agreement. We excluded these payments from our non-GAAP measures because they represent non-recurring expenses and are not indicative of our ongoing operating expenses. We further believe that excluding the executive transition costs from our non-GAAP results is useful to investors in that it allows for period-over-period comparability.

( G )

Non-GAAP items tax effected. This amount adjusts the provision for income taxes to reflect the effect of the non-GAAP items ( A ) - ( F ) on non-GAAP net income. We believe this information is useful to investors because it provides for consistent treatment of the excluded items in this non-GAAP presentation.

( H )

Difference in GAAP and Non-GAAP tax rate. This amount represents the difference between the GAAP and Non-GAAP tax rates applied to the Non-GAAP operating income plus the Non-GAAP non-operating income (expense), net.

( I )

GAAP and non-GAAP tax rate %. These percentages are defined as GAAP income tax provision as a percentage of GAAP income before taxes and non-GAAP income tax provision as a percentage of non-GAAP income before taxes. We believe that investors benefit from a presentation of non-GAAP tax rate percentage as a way of facilitating a comparison to non-GAAP tax rates in prior periods.