-26.84% is the change from 339 to 248
Calculation steps:
[( 248 - 339 ) ÷ 339] x 100 = -26.84%
Formula
Percentage change = [(248 - 339) / 339] x 100
Subtract the new number by the original number
248 - 339 = -91
-91 ÷ 339 = -0.26843657817109146
-0.26843657817109146 x 100 = -26.84%