-91.95% is the change from 348 to 28
Calculation steps:
[( 28 - 348 ) ÷ 348] x 100 = -91.95%
Formula
Percentage change = [(28 - 348) / 348] x 100
Subtract the new number by the original number
28 - 348 = -320
-320 ÷ 348 = -0.9195402298850575
-0.9195402298850575 x 100 = -91.95%