-49.08% is the change from 542 to 276
Calculation steps:
[( 276 - 542 ) ÷ 542] x 100 = -49.08%
Formula
Percentage change = [(276 - 542) / 542] x 100
Subtract the new number by the original number
276 - 542 = -266
-266 ÷ 542 = -0.4907749077490775
-0.4907749077490775 x 100 = -49.08%