91.73% is the change from 266 to 510
Calculation steps:
[( 510 - 266 ) ÷ 266] x 100 = 91.73%
Formula
Percentage change = [(510 - 266) / 266] x 100
Subtract the new number by the original number
510 - 266 = 244
244 ÷ 266 = 0.9172932330827067
0.9172932330827067 x 100 = 91.73%