Table:
0
A
B
C
D
E
F
1
Year Ended December 31,
2
2019
2018
2017
2016
2015
3
Stock-based compensation expense data:
4
Sales and marketing
$2,075
$1,196
$561
$536
$372
5
General and administrative
6,474
4,901
2,638
1,430
2,486
6
Research and development
12,054
7,332
4,214
2,035
1,266
7
Total stock-based compensation expense
$20,603
$13,429
$7,413
$4,001
$4,124

Questions and formulas:
Question: What was the percentage change in the Total stock-based compensation expense between 2018 and 2019?
Formula: (B7-C7)/C7
Formula2: (B7-C7)/C7
Level: Calculation