-96.12% is the change from 258 to 10
Calculation steps:
[( 10 - 258 ) ÷ 258] x 100 = -96.12%
Formula
Percentage change = [(10 - 258) / 258] x 100
Subtract the new number by the original number
10 - 258 = -248
-248 ÷ 258 = -0.9612403100775194
-0.9612403100775194 x 100 = -96.12%