140.43% is the change from 277 to 666
Calculation steps:
[( 666 - 277 ) ÷ 277] x 100 = 140.43%
Formula
Percentage change = [(666 - 277) / 277] x 100
Subtract the new number by the original number
666 - 277 = 389
389 ÷ 277 = 1.404332129963899
1.404332129963899 x 100 = 140.43%