-49.64% is the change from 548 to 276
Calculation steps:
[( 276 - 548 ) ÷ 548] x 100 = -49.64%
Formula
Percentage change = [(276 - 548) / 548] x 100
Subtract the new number by the original number
276 - 548 = -272
-272 ÷ 548 = -0.49635036496350365
-0.49635036496350365 x 100 = -49.64%