-86.59% is the change from 455 to 61
Calculation steps:
[( 61 - 455 ) ÷ 455] x 100 = -86.59%
Formula
Percentage change = [(61 - 455) / 455] x 100
Subtract the new number by the original number
61 - 455 = -394
-394 ÷ 455 = -0.865934065934066
-0.865934065934066 x 100 = -86.59%