128.2% is the change from 266 to 607
Calculation steps:
[( 607 - 266 ) ÷ 266] x 100 = 128.2%
Formula
Percentage change = [(607 - 266) / 266] x 100
Subtract the new number by the original number
607 - 266 = 341
341 ÷ 266 = 1.281954887218045
1.281954887218045 x 100 = 128.2%