The hairstylist earns $5 x 5 = $<<5*5=25>>25 for a normal haircut per day.
He earns $6 x 3 = $<<6*3=18>>18 for a special haircut.
And he earns $8 x 2 = $<<8*2=16>>16 for a trendy haircut.
So, the total amount he earns per day is $25 + $18 + $16 = $<<25+18+16=59>>59.
Therefore, a hairstylist earns $59 x 7= $<<59*7=413>>413 per month.
#### 413