-80.18% is the change from 454 to 90
Calculation steps:
[( 90 - 454 ) ÷ 454] x 100 = -80.18%
Formula
Percentage change = [(90 - 454) / 454] x 100
Subtract the new number by the original number
90 - 454 = -364
-364 ÷ 454 = -0.801762114537445
-0.801762114537445 x 100 = -80.18%