-6.5% is the change from 277 to 259
Calculation steps:
[( 259 - 277 ) ÷ 277] x 100 = -6.5%
Formula
Percentage change = [(259 - 277) / 277] x 100
Subtract the new number by the original number
259 - 277 = -18
-18 ÷ 277 = -0.06498194945848375
-0.06498194945848375 x 100 = -6.5%