-68.63% is the change from 542 to 170
Calculation steps:
[( 170 - 542 ) ÷ 542] x 100 = -68.63%
Formula
Percentage change = [(170 - 542) / 542] x 100
Subtract the new number by the original number
170 - 542 = -372
-372 ÷ 542 = -0.6863468634686347
-0.6863468634686347 x 100 = -68.63%