-88.07% is the change from 553 to 66
Calculation steps:
[( 66 - 553 ) ÷ 553] x 100 = -88.07%
Formula
Percentage change = [(66 - 553) / 553] x 100
Subtract the new number by the original number
66 - 553 = -487
-487 ÷ 553 = -0.8806509945750453
-0.8806509945750453 x 100 = -88.07%