7.14% is the change from 266 to 285
Calculation steps:
[( 285 - 266 ) ÷ 266] x 100 = 7.14%
Formula
Percentage change = [(285 - 266) / 266] x 100
Subtract the new number by the original number
285 - 266 = 19
19 ÷ 266 = 0.07142857142857142
0.07142857142857142 x 100 = 7.14%