-49.26% is the change from 542 to 275
Calculation steps:
[( 275 - 542 ) ÷ 542] x 100 = -49.26%
Formula
Percentage change = [(275 - 542) / 542] x 100
Subtract the new number by the original number
275 - 542 = -267
-267 ÷ 542 = -0.492619926199262
-0.492619926199262 x 100 = -49.26%