-98.03% is the change from 355 to 7
Calculation steps:
[( 7 - 355 ) ÷ 355] x 100 = -98.03%
Formula
Percentage change = [(7 - 355) / 355] x 100
Subtract the new number by the original number
7 - 355 = -348
-348 ÷ 355 = -0.9802816901408451
-0.9802816901408451 x 100 = -98.03%