-11.5% is the change from 548 to 485
Calculation steps:
[( 485 - 548 ) ÷ 548] x 100 = -11.5%
Formula
Percentage change = [(485 - 548) / 548] x 100
Subtract the new number by the original number
485 - 548 = -63
-63 ÷ 548 = -0.11496350364963503
-0.11496350364963503 x 100 = -11.5%