Shield Break level scaling?

Does anyone know what Lyn’s light spell “Shield Break’s” level scaling is? Like how much does the % increase per level? It starts as a 100% debuff which increases damage taken, but I want to know what % debuff it ends up at for levels 5 to 7. I’m working on a really stupid Carina setup for next month when Lyn becomes F2P which might allow Carina to one shot every shadow disciple in the game with a melee attack, but I need the numbers before I can calculate the damage output.