-88.4% is the change from 569 to 66
Calculation steps:
[( 66 - 569 ) ÷ 569] x 100 = -88.4%
Formula
Percentage change = [(66 - 569) / 569] x 100
Subtract the new number by the original number
66 - 569 = -503
-503 ÷ 569 = -0.8840070298769771
-0.8840070298769771 x 100 = -88.4%