title: Calculating percentage with min-max in Gamemaker
body: <p>I have a healthbar that i want to use a min/max and actual number.<br>
  6 is min<br>
  8 is max<br>
  the actual number will float between them with 7 as the beginning number.<br>
  tried ((max_n + min_n) / act_n)*100, but of course that doesn't work.<br>
  i think i was sick that day when they went over that in school (eyeroll)</p>