-16.23% is the change from 308 to 258
Calculation steps:
[( 258 - 308 ) ÷ 308] x 100 = -16.23%
Formula
Percentage change = [(258 - 308) / 308] x 100
Subtract the new number by the original number
258 - 308 = -50
-50 ÷ 308 = -0.16233766233766234
-0.16233766233766234 x 100 = -16.23%