-97.7% is the change from 738 to 17
Calculation steps:
[( 17 - 738 ) ÷ 738] x 100 = -97.7%
Formula
Percentage change = [(17 - 738) / 738] x 100
Subtract the new number by the original number
17 - 738 = -721
-721 ÷ 738 = -0.9769647696476965
-0.9769647696476965 x 100 = -97.7%