-80.11% is the change from 548 to 109
Calculation steps:
[( 109 - 548 ) ÷ 548] x 100 = -80.11%
Formula
Percentage change = [(109 - 548) / 548] x 100
Subtract the new number by the original number
109 - 548 = -439
-439 ÷ 548 = -0.801094890510949
-0.801094890510949 x 100 = -80.11%