How it works. A sheet auto-saves in this browser once it has a name. Renaming a sheet renames its save. Use the tabs to move between the three pages. Print prints all three pages of the current character, one per US Letter sheet, and Print Blank prints an empty set. Export downloads every sheet as a JSON file and Import merges a file like that back in (a sheet with the same name is replaced). Nothing leaves your browser.
Sample sheets. Load sample characters adds all 104 characters from Sample Characters (80 heroes from 350 to 750 points and 24 villains and agents, solo and in teams, with each team's premise and roster under Campaign Use), replacing any saved sheet with the same name just as Import does and leaving your other sheets alone; you can also download the sample sheet file and import it yourself.
Worked out for you. Each characteristic costs (Value − Base) × its cost per point, so STUN is ½ point each and END 1 point per 5 (buy them in 2s and 5s). The main six give a roll of 9 + CHAR ÷ 5, rounded; INT's is your Perception Roll. Every 5 STR is 1d6 of normal damage in hand-to-hand, and each 5 STR doubles what you can lift. SPD lights up your Phases on the Speed Chart. Total Points are your base points plus Complications plus Experience; leave Base points at 325 for a standard 400-point hero with 75 points of Complications. The Attack Helper (screen only) gives the 3d6 roll needed: 11 + OCV − DCV. See Character Creation, Combat and the Dice Roller.