Because the state failed to establish the market value of the property so as to classify it as a felony under sections 812.-012(9)(a)(l) and 812.014(2)(b)(l), Florida Statutes (1983), the juvenile’s conviction for grand theft is reversed. Negron v. State, 306 So.2d 104, 108 (Fla. 1974); Taylor v. State, 425 So.2d 1191, 1194 (Fla. 1st DCA 1983). Consequently, the defendant’s adjudication of delinquency is reduced from grand theft to petit theft. JJ. v. State, 438 So.2d 988 (Fla. 3d DCA 1983).

As modified, the adjudication and sentence for delinquency is affirmed.