27.75% is the change from 436 to 557
Calculation steps:
[( 557 - 436 ) ÷ 436] x 100 = 27.75%
Formula
Percentage change = [(557 - 436) / 436] x 100
Subtract the new number by the original number
557 - 436 = 121
121 ÷ 436 = 0.2775229357798165
0.2775229357798165 x 100 = 27.75%