-72.54% is the change from 539 to 148
Calculation steps:
[( 148 - 539 ) ÷ 539] x 100 = -72.54%
Formula
Percentage change = [(148 - 539) / 539] x 100
Subtract the new number by the original number
148 - 539 = -391
-391 ÷ 539 = -0.725417439703154
-0.725417439703154 x 100 = -72.54%