-85.61% is the change from 556 to 80
Calculation steps:
[( 80 - 556 ) ÷ 556] x 100 = -85.61%
Formula
Percentage change = [(80 - 556) / 556] x 100
Subtract the new number by the original number
80 - 556 = -476
-476 ÷ 556 = -0.8561151079136691
-0.8561151079136691 x 100 = -85.61%