-72.8% is the change from 511 to 139
Calculation steps:
[( 139 - 511 ) ÷ 511] x 100 = -72.8%
Formula
Percentage change = [(139 - 511) / 511] x 100
Subtract the new number by the original number
139 - 511 = -372
-372 ÷ 511 = -0.7279843444227005
-0.7279843444227005 x 100 = -72.8%