-65.68% is the change from 405 to 139
Calculation steps:
[( 139 - 405 ) ÷ 405] x 100 = -65.68%
Formula
Percentage change = [(139 - 405) / 405] x 100
Subtract the new number by the original number
139 - 405 = -266
-266 ÷ 405 = -0.6567901234567901
-0.6567901234567901 x 100 = -65.68%