-82.56% is the change from 258 to 45
Calculation steps:
[( 45 - 258 ) ÷ 258] x 100 = -82.56%
Formula
Percentage change = [(45 - 258) / 258] x 100
Subtract the new number by the original number
45 - 258 = -213
-213 ÷ 258 = -0.8255813953488372
-0.8255813953488372 x 100 = -82.56%