[Cerrado] es correcto el fold?

Hand converted with online PokerStrategy.com hand converter:

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$0.1/$0.25 No-Limit Hold'em (9 handed)

Known players:
[tg]UTG1$15.10:///////;UTG2$75.75:///////;MP1$18.40:///////;MP2$12.91:///////;MP3$12.04:///////;CO$54.90:///////;BU (Hero)$34.24:///////;SB$53.13:///////;BB$25.15:///////;[/tg]

Preflop: Hero is BU with K:s, A:c.
2 folds, MP1 raises to $0.75, 3 folds, Hero calls $0.75, 2 folds.

Flop: ($1.85) J:s, 7:c, A:s (2 players)
MP1 bets $0.75, Hero raises to $1.75, MP1 raises to $5.00, Hero folds, MP1 gets uncalled bet back.

Final Pot: $3.6. (No tengo stats)