-49.18% is the change from 547 to 278
Calculation steps:
[( 278 - 547 ) ÷ 547] x 100 = -49.18%
Formula
Percentage change = [(278 - 547) / 547] x 100
Subtract the new number by the original number
278 - 547 = -269
-269 ÷ 547 = -0.49177330895795246
-0.49177330895795246 x 100 = -49.18%