-86.56% is the change from 454 to 61
Calculation steps:
[( 61 - 454 ) ÷ 454] x 100 = -86.56%
Formula
Percentage change = [(61 - 454) / 454] x 100
Subtract the new number by the original number
61 - 454 = -393
-393 ÷ 454 = -0.8656387665198237
-0.8656387665198237 x 100 = -86.56%