-95.12% is the change from 410 to 20
Calculation steps:
[( 20 - 410 ) ÷ 410] x 100 = -95.12%
Formula
Percentage change = [(20 - 410) / 410] x 100
Subtract the new number by the original number
20 - 410 = -390
-390 ÷ 410 = -0.9512195121951219
-0.9512195121951219 x 100 = -95.12%