86.09% is the change from 266 to 495
Calculation steps:
[( 495 - 266 ) ÷ 266] x 100 = 86.09%
Formula
Percentage change = [(495 - 266) / 266] x 100
Subtract the new number by the original number
495 - 266 = 229
229 ÷ 266 = 0.8609022556390977
0.8609022556390977 x 100 = 86.09%