-78.52% is the change from 419 to 90
Calculation steps:
[( 90 - 419 ) ÷ 419] x 100 = -78.52%
Formula
Percentage change = [(90 - 419) / 419] x 100
Subtract the new number by the original number
90 - 419 = -329
-329 ÷ 419 = -0.7852028639618138
-0.7852028639618138 x 100 = -78.52%