-78.15% is the change from 453 to 99
Calculation steps:
[( 99 - 453 ) ÷ 453] x 100 = -78.15%
Formula
Percentage change = [(99 - 453) / 453] x 100
Subtract the new number by the original number
99 - 453 = -354
-354 ÷ 453 = -0.7814569536423841
-0.7814569536423841 x 100 = -78.15%