Approval

Lo all. I is new and shiny. I is also confused about my approval. 

I went to the wiki and found....

"Approval (fMorale) uses the following components:

fMorale = fCivABilityFactor + fBaseMorale * (1 + fImprovementFactor) + fPlanetMoraleBonusFactor - fNegativeTreasuryFactor + fPlanetQualityBonus - fTaxModifier

fBaseMorale: Base Morale starts at 100. Population then decreases that base morale. The higher the population, the lower your base morale.

fCivABilityFactor: The player's Morale Ability is multiplied by the base morale, then the result is taken to the 0.75 power. In other words, fCivABilityFactor = (fPlayerMorale * fBaseMorale) ^ 0.75

fImprovementFactor: Planetary improvements such as Entertainment Centers are added up as a bonus relative to the base morale. For example, if your base morale is 80 and you build an entertainment center that adds 25% to morale, then you would get an extra 20 points for this.

fPlanetMoraleBonusFactor: MoraleBonusFactor is based on what things are unique about the planet such as from events.

fNegativeTreasuryFactor: NegativeTreasuryFactor comes into play. The longer you are in debt, the more of a negative impact it has.

fPlanetQualityBonus: If the planet class > 10, you receive 10 points for planet quality bonus.

fTaxModifier: The player's tax rate affects approval as well. It is a non-linear progression. At first, the tax modifier is simply the tax rate to the 1.02 power. Example, a tax rate of 20% would result in -21 points to your approval. But this modifier grows. At 70% it is to the 1.1 power meaning you lose 107 points. This number is then divided by 200."

......algebra!!!!   

I just have two simple questions.

1. My overall approval rate is 47% because that's my LOWEST figure: 6 planets, all above 75% rating apart from my home planet, which is 47%. Is this correct? Is that the way it works? ( just clarifying that).

2. Upgrading my entertainment centres is some way off. Is building 2 or 3 other ECs on my home planet a way to sort this out?

Any help greatly appreciated. Ta