-85.77% is the change from 555 to 79
Calculation steps:
[( 79 - 555 ) ÷ 555] x 100 = -85.77%
Formula
Percentage change = [(79 - 555) / 555] x 100
Subtract the new number by the original number
79 - 555 = -476
-476 ÷ 555 = -0.8576576576576577
-0.8576576576576577 x 100 = -85.77%