In C2,
=BYROW(A2:C7,LAMBDA(x,IFERROR(88*INDEX(x,AGGREGATE (14,6,COLUMN(x)/(x>0),1)),"")))
Or
=MAP(A2:A7,B2:B7,C2:C7,LAMBDA(x,y,z,IF(z>0,88*z,IF (y>0,88*y,IF(x>0,88*x,"")))))
For other versions in C2 copied down
=IFERROR(88*@INDEX($A2:$C2,AGGREGATE(14,6,COLUMN($ A2:$C2)/($A2:$C2>0),1)),"")
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