91%
<div class="chart">
<canvas id="myChart" width="220" height="220"></canvas>
<p class="ttl">91%</p>
</div>
.chart {
position: relative;
margin: 60px auto;
width: 220px;
height: 220px;
}
p.ttl {
position: absolute;
top: 64px;
left: 54px;
font-size: 38px;
color: #666;
}