-78.38% is the change from 717 to 155
Calculation steps:
[( 155 - 717 ) ÷ 717] x 100 = -78.38%
Formula
Percentage change = [(155 - 717) / 717] x 100
Subtract the new number by the original number
155 - 717 = -562
-562 ÷ 717 = -0.7838214783821479
-0.7838214783821479 x 100 = -78.38%