-97.12% is the change from 451 to 13
Calculation steps:
[( 13 - 451 ) ÷ 451] x 100 = -97.12%
Formula
Percentage change = [(13 - 451) / 451] x 100
Subtract the new number by the original number
13 - 451 = -438
-438 ÷ 451 = -0.9711751662971175
-0.9711751662971175 x 100 = -97.12%