-92.8% is the change from 542 to 39
Calculation steps:
[( 39 - 542 ) ÷ 542] x 100 = -92.8%
Formula
Percentage change = [(39 - 542) / 542] x 100
Subtract the new number by the original number
39 - 542 = -503
-503 ÷ 542 = -0.9280442804428044
-0.9280442804428044 x 100 = -92.8%