Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.

Text: management 2019s discussion and analysis of financial condition and results of operations ( continued ) the following results drove changes in ccg operating income by approximately the amounts indicated: . <table class='wikitable'><tr><td>1</td><td>( in millions )</td><td>operating income reconciliation</td></tr><tr><td>2</td><td>$ 10646</td><td>2016 ccg operating income</td></tr><tr><td>3</td><td>1250</td><td>lower ccg platform unit cost</td></tr><tr><td>4</td><td>905</td><td>lower ccg operating expense</td></tr><tr><td>5</td><td>625</td><td>higher gross margin from ccg platform revenue1</td></tr><tr><td>6</td><td>-645 ( 645 )</td><td>higher factory start-up costs primarily driven by the ramp of our 10nm process technology</td></tr><tr><td>7</td><td>345</td><td>other</td></tr><tr><td>8</td><td>$ 8166</td><td>2015 ccg operating income</td></tr><tr><td>9</td><td>-2060 ( 2060 )</td><td>higher ccg platform unit costs</td></tr><tr><td>10</td><td>-1565 ( 1565 )</td><td>lower gross margin from ccg platform revenue2</td></tr><tr><td>11</td><td>435</td><td>lower factory start-up costs primarily driven by the ramp of our 14nm process technology</td></tr><tr><td>12</td><td>430</td><td>lower production costs primarily on our 14nm products treated as period charges in 2014</td></tr><tr><td>13</td><td>375</td><td>lower operating expense</td></tr><tr><td>14</td><td>224</td><td>other</td></tr><tr><td>15</td><td>$ 10327</td><td>2014 ccg operating income</td></tr></table> 1 higher gross margin from higher ccg platform revenue was driven by higher average selling prices on notebook and desktop platforms , offset by lower desktop and notebook platform unit sales . 2 lower gross margin from lower ccg platform revenue was driven by lower desktop and notebook platform unit sales , partially offset by higher average selling prices on desktop , notebook , and tablet platforms . data center group segment product overview the dcg operating segment offers platforms designed to provide leading energy-efficient performance for all server , network , and storage applications . in addition , dcg focuses on lowering the total cost of ownership on other specific workload- optimizations for the enterprise , cloud service providers , and communications service provider market segments . in 2016 , we launched the following platforms with an array of functionalities and advancements : 2022 intel ae xeon ae processor e5 v4 family , the foundation for high performing clouds and delivers energy-efficient performance for server , network , and storage workloads . 2022 intel xeon processor e7 v4 family , targeted at platforms requiring four or more cpus ; this processor family delivers high performance and is optimized for real-time analytics and in-memory computing , along with industry-leading reliability , availability , and serviceability . 2022 intel ae xeon phi 2122 product family , formerly code-named knights landing , with up to 72 high-performance intel processor cores , integrated memory and fabric , and a common software programming model with intel xeon processors . the intel xeon phi product family is designed for highly parallel compute and memory bandwidth-intensive workloads . intel xeon phi processors are positioned to increase the performance of supercomputers , enabling trillions of calculations per second , and to address emerging data analytics and artificial intelligence solutions . in 2017 , we expect to release our next generation of intel xeon processors for compute , storage , and network ; a next-generation intel xeon phi processor optimized for deep learning ; and a suite of single-socket products , including next-generation intel xeon e3 processors , next-generation intel atom processors , and next-generation intel xeon-d processors for dense solutions. .
Question: what is the difference in ccg operating income between 2014 and 2015?
Answer: -2161.0
Question: and the specific amount for 2014 again?

user
10327.0
assistant