-77.97% is the change from 454 to 100
Calculation steps:
[( 100 - 454 ) ÷ 454] x 100 = -77.97%
Formula
Percentage change = [(100 - 454) / 454] x 100
Subtract the new number by the original number
100 - 454 = -354
-354 ÷ 454 = -0.7797356828193832
-0.7797356828193832 x 100 = -77.97%