Percentages of your 1RM are built for your primary lifts. The further you move from that main movement — into accessory, auxiliary, and bodypart work — the less reliable a fixed percentage becomes. That is where RPE (Rate of Perceived Exertion) and RIR (Reps In Reserve) keep the work honest. Log a set and dial in your loads.
Programming a primary competition lift? Use the % of 1RM Calculator. Want it all built for you? Work with a Grinder Gym coach.