-86.12% is the change from 569 to 79
Calculation steps:
[( 79 - 569 ) ÷ 569] x 100 = -86.12%
Formula
Percentage change = [(79 - 569) / 569] x 100
Subtract the new number by the original number
79 - 569 = -490
-490 ÷ 569 = -0.8611599297012302
-0.8611599297012302 x 100 = -86.12%