Count the number of equal parts and how many are NOT shaded.<br><br>
&bull; The figure is divided into equal parts (likely a 10 × 10 grid or similar)<br>
&bull; Count the unshaded squares: 55 out of 100 are not shaded<br>
&bull; Percentage not shaded = 55 ÷ 100 × 100% = 55%<br><br>
Final Answer: 55