In 2020, LEGO released 2 Seasonal Halloween sets, all of these sets have been retired. For that year, the total price of all retail sets cost $23, today those sets are valued around $43, a growth of 89%.
Most valuable 2020 LEGO Seasonal Halloween set
40423 Halloween Hayride $24.46
Highest growth 2020 Seasonal Halloween set
854049 Pumpkin & Bat Duo +90.09%
2 sets

40423 Halloween Hayride

Theme / Subtheme Seasonal / Halloween
Year 2020
Pieces / Minifigs 148 / 3
Availability Retired
40423 LEGO Halloween Hayride
Retail $12.99
Value $24.46
Growth  +88.3%
Annual growth 9.7%

854049 Pumpkin & Bat Duo

Theme / Subtheme Seasonal / Halloween
Year 2020
Pieces 131
Availability Retired
854049 LEGO Halloween Pumpkin & Bat Duo
Retail $9.99
Value $18.99
Growth  +90.1%
Annual growth 7.0%