-92.38% is the change from 551 to 42
Calculation steps:
[( 42 - 551 ) ÷ 551] x 100 = -92.38%
Formula
Percentage change = [(42 - 551) / 551] x 100
Subtract the new number by the original number
42 - 551 = -509
-509 ÷ 551 = -0.9237749546279492
-0.9237749546279492 x 100 = -92.38%