the percent formula is a proportion.
percent formula : is / of = % / 100
419% of what number is 33.52
is = 33.52
% = 419
of = x
set it up
33.52 / x = 419 / 100
now we cross multiply
(419)(x) = (100)(33.52)
419x = 3352
x = 3352/419
x = 8
so ur number is 8