188.72% is the change from 266 to 768
Calculation steps:
[( 768 - 266 ) ÷ 266] x 100 = 188.72%
Formula
Percentage change = [(768 - 266) / 266] x 100
Subtract the new number by the original number
768 - 266 = 502
502 ÷ 266 = 1.887218045112782
1.887218045112782 x 100 = 188.72%