-30.14% is the change from 355 to 248
Calculation steps:
[( 248 - 355 ) ÷ 355] x 100 = -30.14%
Formula
Percentage change = [(248 - 355) / 355] x 100
Subtract the new number by the original number
248 - 355 = -107
-107 ÷ 355 = -0.30140845070422534
-0.30140845070422534 x 100 = -30.14%