-37.6% is the change from 258 to 161
Calculation steps:
[( 161 - 258 ) ÷ 258] x 100 = -37.6%
Formula
Percentage change = [(161 - 258) / 258] x 100
Subtract the new number by the original number
161 - 258 = -97
-97 ÷ 258 = -0.375968992248062
-0.375968992248062 x 100 = -37.6%