-94.96% is the change from 397 to 20
Calculation steps:
[( 20 - 397 ) ÷ 397] x 100 = -94.96%
Formula
Percentage change = [(20 - 397) / 397] x 100
Subtract the new number by the original number
20 - 397 = -377
-377 ÷ 397 = -0.9496221662468514
-0.9496221662468514 x 100 = -94.96%