-72.42% is the change from 591 to 163
Calculation steps:
[( 163 - 591 ) ÷ 591] x 100 = -72.42%
Formula
Percentage change = [(163 - 591) / 591] x 100
Subtract the new number by the original number
163 - 591 = -428
-428 ÷ 591 = -0.7241962774957699
-0.7241962774957699 x 100 = -72.42%