52.6% is the change from 557 to 850
Calculation steps:
[( 850 - 557 ) ÷ 557] x 100 = 52.6%
Formula
Percentage change = [(850 - 557) / 557] x 100
Subtract the new number by the original number
850 - 557 = 293
293 ÷ 557 = 0.526032315978456
0.526032315978456 x 100 = 52.6%