=SI(ET(B5>=1%;B5<=60%);1%;SI(ET(B5>60%;B5<=70%);2%;SI(ET(B5>70%;B5<=80%);3%;SI(ET(B5>80%;B5<=90%);4%;SI(ET(B5>90%;B5<=100%);5%;0)))))
=SIERREUR(RECHERCHEV(B3;{0.1;0,6.2;0,7.3;0,8.4;0,9.5};2)%;"")
=SIERREUR(RECHERCHEV(B3;{0,01.1;0,6.2;0,7.3;0,8.4;0,9.5};2)%;"")