57.89% is the change from 247 to 390
Calculation steps:
[( 390 - 247 ) ÷ 247] x 100 = 57.89%
Formula
Percentage change = [(390 - 247) / 247] x 100
Subtract the new number by the original number
390 - 247 = 143
143 ÷ 247 = 0.5789473684210527
0.5789473684210527 x 100 = 57.89%