143.07% is the change from 274 to 666
Calculation steps:
[( 666 - 274 ) ÷ 274] x 100 = 143.07%
Formula
Percentage change = [(666 - 274) / 274] x 100
Subtract the new number by the original number
666 - 274 = 392
392 ÷ 274 = 1.4306569343065694
1.4306569343065694 x 100 = 143.07%