-89.07% is the change from 686 to 75
Calculation steps:
[( 75 - 686 ) ÷ 686] x 100 = -89.07%
Formula
Percentage change = [(75 - 686) / 686] x 100
Subtract the new number by the original number
75 - 686 = -611
-611 ÷ 686 = -0.89067055393586
-0.89067055393586 x 100 = -89.07%