-68.46% is the change from 539 to 170
Calculation steps:
[( 170 - 539 ) ÷ 539] x 100 = -68.46%
Formula
Percentage change = [(170 - 539) / 539] x 100
Subtract the new number by the original number
170 - 539 = -369
-369 ÷ 539 = -0.6846011131725418
-0.6846011131725418 x 100 = -68.46%