101.08% is the change from 277 to 557
Calculation steps:
[( 557 - 277 ) ÷ 277] x 100 = 101.08%
Formula
Percentage change = [(557 - 277) / 277] x 100
Subtract the new number by the original number
557 - 277 = 280
280 ÷ 277 = 1.0108303249097472
1.0108303249097472 x 100 = 101.08%