-90.6% is the change from 351 to 33
Calculation steps:
[( 33 - 351 ) ÷ 351] x 100 = -90.6%
Formula
Percentage change = [(33 - 351) / 351] x 100
Subtract the new number by the original number
33 - 351 = -318
-318 ÷ 351 = -0.905982905982906
-0.905982905982906 x 100 = -90.6%