276.27% is the change from 177 to 666
Calculation steps:
[( 666 - 177 ) ÷ 177] x 100 = 276.27%
Formula
Percentage change = [(666 - 177) / 177] x 100
Subtract the new number by the original number
666 - 177 = 489
489 ÷ 177 = 2.76271186440678
2.76271186440678 x 100 = 276.27%