1800% is the change from 14 to 266
Calculation steps:
[( 266 - 14 ) ÷ 14] x 100 = 1800%
Formula
Percentage change = [(266 - 14) / 14] x 100
Subtract the new number by the original number
266 - 14 = 252
252 ÷ 14 = 18
18 x 100 = 1800%
Example