-90.14% is the change from 690 to 68
Calculation steps:
[( 68 - 690 ) ÷ 690] x 100 = -90.14%
Formula
Percentage change = [(68 - 690) / 690] x 100
Subtract the new number by the original number
68 - 690 = -622
-622 ÷ 690 = -0.9014492753623189
-0.9014492753623189 x 100 = -90.14%