Use Hide if; assuming that every container represents 20%, the calculation would be
not percentage // = 0 or empty
percentage < 21
percentage < 41 // etc.
You could also store your 5 pictures in a single global field with 5 repetitions; then use a globally stored calculation field, also with 5 repetitions, result type container, and the calculation
i = Get ( CalculationRepetitionNumber ) ;
Extend ( percentage ) > ( i - 1 ) * 20 ;
GetRepetition ( YourContainerField ; i )