273.45% is the change from 177 to 661
Calculation steps:
[( 661 - 177 ) ÷ 177] x 100 = 273.45%
Formula
Percentage change = [(661 - 177) / 177] x 100
Subtract the new number by the original number
661 - 177 = 484
484 ÷ 177 = 2.7344632768361583
2.7344632768361583 x 100 = 273.45%