Professor's Research (Professor Sada) #240 from Scarlet & Violet is a holo ultra_rare card that currently sells for about $3.95 ungraded, with graded copies ranging from $4.70 at grade 7 to $57.00 at grade 10. A grade 10 copy sells for around $57.00, about 14× the $3.95 raw price, so high-grade copies are worth grading.