-33.58% is the change from 399 to 265
Calculation steps:
[( 265 - 399 ) ÷ 399] x 100 = -33.58%
Formula
Percentage change = [(265 - 399) / 399] x 100
Subtract the new number by the original number
265 - 399 = -134
-134 ÷ 399 = -0.3358395989974937
-0.3358395989974937 x 100 = -33.58%