-18.22% is the change from 258 to 211
Calculation steps:
[( 211 - 258 ) ÷ 258] x 100 = -18.22%
Formula
Percentage change = [(211 - 258) / 258] x 100
Subtract the new number by the original number
211 - 258 = -47
-47 ÷ 258 = -0.1821705426356589
-0.1821705426356589 x 100 = -18.22%