-78.47% is the change from 418 to 90
Calculation steps:
[( 90 - 418 ) ÷ 418] x 100 = -78.47%
Formula
Percentage change = [(90 - 418) / 418] x 100
Subtract the new number by the original number
90 - 418 = -328
-328 ÷ 418 = -0.784688995215311
-0.784688995215311 x 100 = -78.47%