What’s up with protein prices?

When I first started lifting (3-4ish years ago) I could get a 5 pound tub of protein for maybe 45-50 bucks. I stepped away from protein power since that time because I had more time to prepare actual solid food and whatnot. Getting busier lately now and a 5lb tub of protein is $75-$80??? Anyone know why this is? And is this a general spike in the price recently, or has it been slowly going up over the years? Thanks!