The graphing calculator gives the area bounded by the curve of y = ln x, the x-axis and the lines x = 1 and x = 4 as In xdx = 2.5452 correct to 4 decimal places. Find the percentage error (correct to 2 decimal places) when finding an approximation for this area (correct to 4 decimal places) using the trapezoidal rule and 4 even sub-intervals.

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