Formulas:
=CONTAR.SI(A5:C37,"Farias")
=CONTAR.SI(A5:C37,"Marcos")
=CONTAR.SI(A5:C37,"Salas")
=CONTAR.SI(A5:C37,"Gomez")
=SUMAR.SI(B5:B37,"leche",C5:C37)
=SUMAR.SI(B5:B37,"yogurt",C5:C37)
=SUMAR.SI(B5:B37,"manteca",C5:C37)
=SUMAR.SI(B5:B37,"queso",C5:C37)
=SUMAR.SI(B5:B37,"levadura",C5:C37)
=SUMAR.SI(B5:B37,"queso untable",C5:C37)
=SUMAR.SI(A5:A37,"Salas",E5:E37)
=SUMAR.SI(A5:A37,"Fernan",E5:E37)
=SUMAR.SI(A5:A37,"Farias",E5:E37)
=SUMAR.SI(A6:A38,"Gomez",E6:E38)