Buff Blast damage from levels 1-9

Library pages for Blast and Power Strike.

Level 1 Blast does 220% damage, at a cost of 17 MP.
Level 3 Blast does 260% damage, at a cost of 17 MP.
Level 20 Power Strike does 260% damage, at a cost of 12 MP.
Blast and Power Strike share the same attack speed, according to Ayumilove.

Currently, Blast needs to be at least Level 4 to replace Power Strike, at a higher MP cost.
I propose to buff Blast damage from levels 1-9 so the first SP put into it can replace Power Strike, while keeping the original MP costs.

Spoiler: Text Version

Level Original% Proposed%
1 220 274
2 240 288
3 260 302
4 280 316
5 300 330
6 320 344
7 340 358
8 360 372
9 380 386
10 400 400
11 410 410

Alternatively, if this proposal is overtuned, the damage can be buffed from levels 1-4 instead.

Spoiler: Text Version

Level Original% Proposed%
1 220 268
2 240 276
3 260 284
4 280 292
5 300 300
6 320 320

I'm aware that other classes have main job attacking skills that don't immediately replace their previous ones, like level 1 Spear Crusher doing 55% x 2 damage to 1 mob at 100% stab rate.
I am not making proposal threads for those because Blast is, relatively, a very simple attacking skill, and I don't have enough brainpower for those balance changes.