A pediatric growth chart reports that an $8$-year-old girl's weight of $56.2$ pounds is at the ${40}^{th}$ percentile. Which statement best interprets this percentile?

$40\%$ of $8$-year-old girls weigh more than or equal to $56.2$ pounds.

$40\%$ of $8$-year-old girls weigh less than or equal to $56.2$ pounds.

$60\%$ of $8$-year-old girls weigh less than or equal to $56.2$ pounds.

Exactly $40\%$ of $8$-year-old girls weigh exactly $56.2$ pounds.