-80.26% is the change from 456 to 90
Calculation steps:
[( 90 - 456 ) ÷ 456] x 100 = -80.26%
Formula
Percentage change = [(90 - 456) / 456] x 100
Subtract the new number by the original number
90 - 456 = -366
-366 ÷ 456 = -0.8026315789473685
-0.8026315789473685 x 100 = -80.26%