2.33% is the change from 688 to 704
Calculation steps:
[( 704 - 688 ) ÷ 688] x 100 = 2.33%
Formula
Percentage change = [(704 - 688) / 688] x 100
Subtract the new number by the original number
704 - 688 = 16
16 ÷ 688 = 0.023255813953488372
0.023255813953488372 x 100 = 2.33%