48.47% is the change from 557 to 827
Calculation steps:
[( 827 - 557 ) ÷ 557] x 100 = 48.47%
Formula
Percentage change = [(827 - 557) / 557] x 100
Subtract the new number by the original number
827 - 557 = 270
270 ÷ 557 = 0.48473967684021546
0.48473967684021546 x 100 = 48.47%