-48.71% is the change from 542 to 278
Calculation steps:
[( 278 - 542 ) ÷ 542] x 100 = -48.71%
Formula
Percentage change = [(278 - 542) / 542] x 100
Subtract the new number by the original number
278 - 542 = -264
-264 ÷ 542 = -0.4870848708487085
-0.4870848708487085 x 100 = -48.71%