-94.49% is the change from 345 to 19
Calculation steps:
[( 19 - 345 ) ÷ 345] x 100 = -94.49%
Formula
Percentage change = [(19 - 345) / 345] x 100
Subtract the new number by the original number
19 - 345 = -326
-326 ÷ 345 = -0.9449275362318841
-0.9449275362318841 x 100 = -94.49%