79.68% is the change from 315 to 566
Calculation steps:
[( 566 - 315 ) ÷ 315] x 100 = 79.68%
Formula
Percentage change = [(566 - 315) / 315] x 100
Subtract the new number by the original number
566 - 315 = 251
251 ÷ 315 = 0.7968253968253968
0.7968253968253968 x 100 = 79.68%