Win boosting is priced per game, so you order a set number of net ranked wins on the mobile ladder rather than a fixed tier. That makes the figure track the games you ask for, not the distance between two ranks. Set the win count on the Wild Rift win boost page, or aim for a defined tier instead with rank boosting.
For a rough anchor before the live widget settles it: a single net win in the lower tiers sits in the low single digits, a short streak of wins runs into the mid double digits, and net wins requested near the top of the ladder cost more per game because the win rate a booster can hold tightens. If you want a clean seasonal floor instead of a streak, a placement run is the better fit.
Use the grid below as a yardstick for the figures the live widget returns, handy for checking that an order looks fair before you commit. The win boost page reads your exact rank, region and win count, so it stays the source of truth.
USD bands for orientation only. Each order is priced from your live rank, region and win count, so the widget on the win boost page settles any difference. Switch to the rank boost view if a fixed tier suits the goal better.