62.09% is the change from 277 to 449
Calculation steps:
[( 449 - 277 ) ÷ 277] x 100 = 62.09%
Formula
Percentage change = [(449 - 277) / 277] x 100
Subtract the new number by the original number
449 - 277 = 172
172 ÷ 277 = 0.6209386281588448
0.6209386281588448 x 100 = 62.09%