-95.13% is the change from 390 to 19
Calculation steps:
[( 19 - 390 ) ÷ 390] x 100 = -95.13%
Formula
Percentage change = [(19 - 390) / 390] x 100
Subtract the new number by the original number
19 - 390 = -371
-371 ÷ 390 = -0.9512820512820512
-0.9512820512820512 x 100 = -95.13%