Mr Eyiaro Taiwo bought a car #1,200 and sold it for 4000.what was his percentage gain or loss.

To calculate the percentage gain or loss, we can use the formula:

% gain or loss = (selling price - cost price) / cost price * 100

Cost price = #1,200
Selling price = #4,000

% gain or loss = (4000 - 1200) / 1200 * 100
% gain or loss = 2800 / 1200 * 100
% gain or loss ≈ 233.33%

So Mr Eyiaro Taiwo had a percentage gain of approximately 233.33%.