128.87% is the change from 291 to 666
Calculation steps:
[( 666 - 291 ) ÷ 291] x 100 = 128.87%
Formula
Percentage change = [(666 - 291) / 291] x 100
Subtract the new number by the original number
666 - 291 = 375
375 ÷ 291 = 1.288659793814433
1.288659793814433 x 100 = 128.87%