-68.06% is the change from 454 to 145
Calculation steps:
[( 145 - 454 ) ÷ 454] x 100 = -68.06%
Formula
Percentage change = [(145 - 454) / 454] x 100
Subtract the new number by the original number
145 - 454 = -309
-309 ÷ 454 = -0.6806167400881057
-0.6806167400881057 x 100 = -68.06%