-6.02% is the change from 266 to 250
Calculation steps:
[( 250 - 266 ) ÷ 266] x 100 = -6.02%
Formula
Percentage change = [(250 - 266) / 266] x 100
Subtract the new number by the original number
250 - 266 = -16
-16 ÷ 266 = -0.06015037593984962
-0.06015037593984962 x 100 = -6.02%