Find the wrong number in the following number

? = 500.24 + 1013.97 – 7.99²  

(0.89 ³ + 1.64 ³ +2.76 ³ ) ÷ 5.89 = ?

6401.23 × `1 3/4` - 352.87 × ? = 10443.789

320.98 + 49.99% of (261.09 + 138.98) = ?

(`sqrt(224.95)` `xx` `sqrt(440.89)` ) + (`sqrt(783.82)` `xx` `sqrt(440.87)` ) = ? + 150.03% of 120.33 - 139.86% of 1249.88

499.99 + 1999 ÷ 39.99 × 50.01 = ?

23.87% of 449.86 + 17.83 of 4.09 = ?

1959.09 + 33.94% of 6250.06 – ? = √10609.02 + √144.24

30.22% of (79.9 x 6.01) + 69.97 =?

(14.66)² + (343.84 ÷ 3.88 - 55.87) = ? + 91.23