PriceCharting market prices as of :
| Condition / grade | Price (USD) |
|---|---|
| Ungraded | $2.83 |
| PSA 9 | $35 |
| PSA 10 | $200 |
| BGS 10 | $260 |
| CGC 10 | $120 |
| SGC 10 | $120 |
Live charts, history, and collection tools: https://tcginsider.net/sets/pokemon-japanese-ex-battle-boost/pokemon-japanese-ex-battle-boost-dewott-30