-64.39% is the change from 542 to 193
Calculation steps:
[( 193 - 542 ) ÷ 542] x 100 = -64.39%
Formula
Percentage change = [(193 - 542) / 542] x 100
Subtract the new number by the original number
193 - 542 = -349
-349 ÷ 542 = -0.6439114391143912
-0.6439114391143912 x 100 = -64.39%