bonjour

[98 ; 98.5 [ = 9

[ 98.5 ; 99 [ = 17

[ 99 ; 99.5 [ = 31

[99.5 ; 100 [ = 26

[100 ; 100.5 [ = 13

[100.5 ; 101 ] =  4

nombre de sachets  < 99 g = 26

26/100 = 26 %