565% is the change from 40 to 266
Calculation steps:
[( 266 - 40 ) ÷ 40] x 100 = 565%
Formula
Percentage change = [(266 - 40) / 40] x 100
Subtract the new number by the original number
266 - 40 = 226
226 ÷ 40 = 5.65
5.65 x 100 = 565%
Example