-63.82% is the change from 539 to 195
Calculation steps:
[( 195 - 539 ) ÷ 539] x 100 = -63.82%
Formula
Percentage change = [(195 - 539) / 539] x 100
Subtract the new number by the original number
195 - 539 = -344
-344 ÷ 539 = -0.6382189239332097
-0.6382189239332097 x 100 = -63.82%