If the forest cover of Benin is 54 thousand hectare and decreasing at 2.4% per annum, what will be the forest in 4 years

I believe this was already answered , but ....

what is 54(.976)^4 ??

100 - 2.4 = 97.6 % left after each year

54 * 0.976^4 = 54 * 0.9074 = 49 thousand hectares left