im a little confussed here

. i had my prelude on the dyno and it came back as 151whp. i read that for preludes the majority says for crank (for prelude at least) its 15% while smaller portion says 25%. If its 15% that comes out to be 173.65 hp. Specs say prelude should be around 198hp from factory. Even at 25% its shy of 198hp. What gives?