Ajutorrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

360 lei _____ 100%
x lei _______ p%
x = 360p/100 = 36p/10 = 18p/5
18p/5 _______ 100%
243 lei ______ 75%
24300 = 18p•15
p=24300/270=2430/27
p=90