Table:
0
A
B
C
D
1
2019
2018
2017
2
Stock options
1,687
2,806
569
3
RSUs
2,352
2,580
83
4
ESPP common stock equivalents
74
71
—
5
ID Checker earnout shares
—
—
24
6
Total potentially dilutive common shares outstanding
4,113
5,457
676

Questions and formulas:
Question: What is the percentage change in the amount of potentially dilutive common shares outstanding of ESPP common stock equivalents from 2018 to 2019?
Formula: (B4-C4)/C4 
Formula2: (B4-C4)/C4 
Level: Calculation
Question: What is the ratio of the amount of stock options between 2018 to 2019?
Formula: C2/B2 
Formula2: C2/B2 
Level: Calculation