Table:
0
A
B
C
D
1
For the Year Ended
2
VMware Employee Stock Purchase Plan
January 31, 2020
February 1, 2019
February 2, 2018
3
Dividend yield
None
None
None
4
Expected volatility
27.4%
33.5%
22.6%
5
Risk-free interest rate
1.7%
2.0%
1.2%
6
Expected term (in years)
0.6
0.8
0.9
7
Weighted-average fair value at grant date
$35.66
$34.72
$21.93

Questions and formulas:
Question: What was the absolute percentage change in risk-free interest rate between 2018 and 2019?
Formula: C5-D5
Formula2: C5-D5
Level: Calculation
Question: What was the absolute percentage change in Expected volatility between 2019 and 2020?
Formula: B4-C4
Formula2: B4-C4
Level: Calculation