The numbers on screen come from one small model: wire cross-section π/4 × 0.035², bead area = wire fed per inch of travel, heat input = V × A × 60 ÷ (1000 × travel speed). Amps from wire speed (I = 0.45 × WFS + 40, typical for 0.035 in steel wire) and the fusion depth drawn in the section (scaled to heat input) are illustrative: your machine's chart and your welding procedure are the authority.