-19.77% is the change from 258 to 207
Calculation steps:
[( 207 - 258 ) ÷ 258] x 100 = -19.77%
Formula
Percentage change = [(207 - 258) / 258] x 100
Subtract the new number by the original number
207 - 258 = -51
-51 ÷ 258 = -0.19767441860465115
-0.19767441860465115 x 100 = -19.77%