-90.52% is the change from 306 to 29
Calculation steps:
[( 29 - 306 ) ÷ 306] x 100 = -90.52%
Formula
Percentage change = [(29 - 306) / 306] x 100
Subtract the new number by the original number
29 - 306 = -277
-277 ÷ 306 = -0.9052287581699346
-0.9052287581699346 x 100 = -90.52%