-89.78% is the change from 548 to 56
Calculation steps:
[( 56 - 548 ) ÷ 548] x 100 = -89.78%
Formula
Percentage change = [(56 - 548) / 548] x 100
Subtract the new number by the original number
56 - 548 = -492
-492 ÷ 548 = -0.8978102189781022
-0.8978102189781022 x 100 = -89.78%