The original post is just a bad sentence. I’m about 12.4% sure it’s a run on sentence. Good school or not the structure is all wrong. I’m still confused as to if the 12.4% raise was offered before or after the union threatened to strike. The sentence does a terrible job describing the cause and effect of the situation. Wouldn’t it make more sense to bring up the union threat before the raise? And as others have pointed out 12.4% isn’t even correct.