27.7% is the change from 538 to 687
Calculation steps:
[( 687 - 538 ) ÷ 538] x 100 = 27.7%
Formula
Percentage change = [(687 - 538) / 538] x 100
Subtract the new number by the original number
687 - 538 = 149
149 ÷ 538 = 0.27695167286245354
0.27695167286245354 x 100 = 27.7%