31.6% is the change from 538 to 708
Calculation steps:
[( 708 - 538 ) ÷ 538] x 100 = 31.6%
Formula
Percentage change = [(708 - 538) / 538] x 100
Subtract the new number by the original number
708 - 538 = 170
170 ÷ 538 = 0.3159851301115242
0.3159851301115242 x 100 = 31.6%