Table:
|  | 2019 | 2018 |
| --- | --- | --- |
|  | Number | Number |
| Customer operations | 370 | 380 |
| Product and technology | 317 | 312 |
| Corporate | 115 | 130 |
| Total | 802 | 822 |
Paragraphs:
7. Employee numbers and costs
The average monthly number of employees (including Executive Directors but excluding third-party contractors) employed by the Group was as follows:
Question:
What was the change in Corporate in 2019 from 2018?
Answer: 115-130 = -15