Table:
€ million	2017/2018	2018/2019

Wages and salaries	2,173	2,264

Social security expenses, expenses for post-employment benefits and related employee benefits	552	552

thereof for post-employment benefits	(43)	(41)

2,725	2,816

Answer the following question considering the given table and text, include the steps to get the answer if you wish, but end your response with {"answer": ["ANSWER"], "scale": "SCALE"} (scale blank when not needed).

Context:
17. Personnel expenses
Personnel expenses can be broken down as follows:
Wages and salaries include expenses relating to restructuring measures and severance payments of €23 million (2017/18: €19 million). The variable remuneration rose from €52 million in financial year 2017/18 to €81 million in financial year 2018/19. Wages and salaries also include expenses for long-term remuneration components totalling €7 million (2017/18: €16 million).

Question: What was the percentage change in personnel expenses in 2018/2019 from 2017/2018?

((2,816-2,725)/2,725) * 100, therefore {"answer": "3.34", "scale": "percent"}