93.4% is the change from 288 to 557
Calculation steps:
[( 557 - 288 ) ÷ 288] x 100 = 93.4%
Formula
Percentage change = [(557 - 288) / 288] x 100
Subtract the new number by the original number
557 - 288 = 269
269 ÷ 288 = 0.9340277777777778
0.9340277777777778 x 100 = 93.4%