-85.71% is the change from 455 to 65
Calculation steps:
[( 65 - 455 ) ÷ 455] x 100 = -85.71%
Formula
Percentage change = [(65 - 455) / 455] x 100
Subtract the new number by the original number
65 - 455 = -390
-390 ÷ 455 = -0.8571428571428571
-0.8571428571428571 x 100 = -85.71%