30.88% is the change from 408 to 534
Calculation steps:
[( 534 - 408 ) ÷ 408] x 100 = 30.88%
Formula
Percentage change = [(534 - 408) / 408] x 100
Subtract the new number by the original number
534 - 408 = 126
126 ÷ 408 = 0.3088235294117647
0.3088235294117647 x 100 = 30.88%