85.71% is the change from 266 to 494
Calculation steps:
[( 494 - 266 ) ÷ 266] x 100 = 85.71%
Formula
Percentage change = [(494 - 266) / 266] x 100
Subtract the new number by the original number
494 - 266 = 228
228 ÷ 266 = 0.8571428571428571
0.8571428571428571 x 100 = 85.71%