-25.22% is the change from 345 to 258
Calculation steps:
[( 258 - 345 ) ÷ 345] x 100 = -25.22%
Formula
Percentage change = [(258 - 345) / 345] x 100
Subtract the new number by the original number
258 - 345 = -87
-87 ÷ 345 = -0.25217391304347825
-0.25217391304347825 x 100 = -25.22%