Table:
|  | 2019 % | 2018 % | 2017 % |
| --- | --- | --- | --- |
| Weighted average actuarial assumptions used at 31 March1: |  |  |  |
| Rate of inflation2 | 2.9 | 2.9 | 3.0 |
| Rate of increase in salaries | 2.7 | 2.7 | 2.6 |
| Discount rate | 2.3 | 2.5 | 2.6 |
Paragraphs:
Actuarial assumptions
The Group’s scheme liabilities are measured using the projected unit credit method using the principal actuarial assumptions set out below:
Notes: 1 Figures shown represent a weighted average assumption of the individual schemes.
2 The rate of increases in pensions in payment and deferred revaluation are dependent on the rate of inflation.
Question:
What is the difference between 2019 average rate of inflation and 2019 average rate of increase in salaries?
Answer: [(2.9+2.9)/2] - [(2.7+2.7)/2] = 0.2