-93.41% is the change from 258 to 17
Calculation steps:
[( 17 - 258 ) ÷ 258] x 100 = -93.41%
Formula
Percentage change = [(17 - 258) / 258] x 100
Subtract the new number by the original number
17 - 258 = -241
-241 ÷ 258 = -0.9341085271317829
-0.9341085271317829 x 100 = -93.41%