87.59% is the change from 266 to 499
Calculation steps:
[( 499 - 266 ) ÷ 266] x 100 = 87.59%
Formula
Percentage change = [(499 - 266) / 266] x 100
Subtract the new number by the original number
499 - 266 = 233
233 ÷ 266 = 0.8759398496240601
0.8759398496240601 x 100 = 87.59%