Gyarados #22 from Pokémon GO is a reverse holo holo_rare card that currently sells for about $0.99 ungraded, with graded copies ranging from $7.31 at grade 7 to $42.42 at grade 10. A grade 10 copy sells for around $42.42, about 43× the $0.99 raw price, so high-grade copies are worth grading.