-91.06% is the change from 548 to 49
Calculation steps:
[( 49 - 548 ) ÷ 548] x 100 = -91.06%
Formula
Percentage change = [(49 - 548) / 548] x 100
Subtract the new number by the original number
49 - 548 = -499
-499 ÷ 548 = -0.9105839416058394
-0.9105839416058394 x 100 = -91.06%