-88.76% is the change from 258 to 29
Calculation steps:
[( 29 - 258 ) ÷ 258] x 100 = -88.76%
Formula
Percentage change = [(29 - 258) / 258] x 100
Subtract the new number by the original number
29 - 258 = -229
-229 ÷ 258 = -0.8875968992248062
-0.8875968992248062 x 100 = -88.76%