17100% is the change from 4 to 688
Calculation steps:
[( 688 - 4 ) ÷ 4] x 100 = 17100%
Formula
Percentage change = [(688 - 4) / 4] x 100
Subtract the new number by the original number
688 - 4 = 684
684 ÷ 4 = 171
171 x 100 = 17100%
Example