The paid-up share capital is the portion of the share capital that has been paid by the shareholders.
In this case, Taurus Ltd has issued three million ordinary shares at GH⊄ 0.60 per share. This means that the total value of the issued shares is:
3,000,000 shares * GH⊄ 0.60 per share = GH⊄ 1,800,000
The company has made calls of GH⊄ 0.40 per share, and all calls have been paid by shareholders except for GH⊄ 100,000 owing from one shareholder.
So the total amount of calls that have been paid is:
3,000,000 shares * GH⊄ 0.40 per share = GH⊄ 1,200,000
Therefore, the paid-up share capital is the total value of the issued shares minus the total amount of calls paid, which is:
GH⊄ 1,800,000 - GH⊄ 1,200,000 = GH⊄ 600,000
Therefore, the correct answer is GH⊄ 600,000.