-54.06% is the change from 542 to 249
Calculation steps:
[( 249 - 542 ) ÷ 542] x 100 = -54.06%
Formula
Percentage change = [(249 - 542) / 542] x 100
Subtract the new number by the original number
249 - 542 = -293
-293 ÷ 542 = -0.540590405904059
-0.540590405904059 x 100 = -54.06%