-93.73% is the change from 542 to 34
Calculation steps:
[( 34 - 542 ) ÷ 542] x 100 = -93.73%
Formula
Percentage change = [(34 - 542) / 542] x 100
Subtract the new number by the original number
34 - 542 = -508
-508 ÷ 542 = -0.9372693726937269
-0.9372693726937269 x 100 = -93.73%