Wooper #88 from HeartGold & SoulSilver is a reverse holo common card that currently sells for about $2.34 ungraded, with graded copies ranging from $21.71 at grade 9 to $58.85 at grade 10. A grade 10 copy sells for around $58.85, about 25× the $2.34 raw price, so high-grade copies are worth grading.