-64.76% is the change from 542 to 191
Calculation steps:
[( 191 - 542 ) ÷ 542] x 100 = -64.76%
Formula
Percentage change = [(191 - 542) / 542] x 100
Subtract the new number by the original number
191 - 542 = -351
-351 ÷ 542 = -0.6476014760147601
-0.6476014760147601 x 100 = -64.76%