-90.48% is the change from 693 to 66
Calculation steps:
[( 66 - 693 ) ÷ 693] x 100 = -90.48%
Formula
Percentage change = [(66 - 693) / 693] x 100
Subtract the new number by the original number
66 - 693 = -627
-627 ÷ 693 = -0.9047619047619048
-0.9047619047619048 x 100 = -90.48%