What was the impact of the Berlin Conference on the people of the Gold Coast?

The Gold Coast (Ghana) had been a formal English colony since 1874, over a decade before the Berlin Conference. As such, the Berlin Conference had very little direct impact on the various peoples of the Gold Coast. Indirectly, the Conference may have affected the Ghanan peoples in that one of its goals was to eliminate slavery on the continent. The British were very concerned with eliminating slavery as well and, in reality, had already done so in their spheres of influence before the resolutions of the Berlin Conference.
The Conference's main goal, however, was to establish agreed upon European colonies in Africa. The British already had a firm hold on the Gold Coast since the Dutch abandoned their designs there in the 1870s. There had been a series of conflicts with the Ashanti since the early years of the nineteenth Century. Many coastal tribes, such as the Fante, relied on the British for protection against the Ashanti. This relationship was likely little changed by the Berlin Conference.
By the 1880s, the British were more concerned with shoring up their interests in Egypt and South Africa than in the Gold Coast. They already had a strong and unquestioned presence there. Colonial rule and relationships with the native peoples there were already well established.
http://countrystudies.us/ghana/63.htm

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