63.58% is the change from 346 to 566
Calculation steps:
[( 566 - 346 ) ÷ 346] x 100 = 63.58%
Formula
Percentage change = [(566 - 346) / 346] x 100
Subtract the new number by the original number
566 - 346 = 220
220 ÷ 346 = 0.6358381502890174
0.6358381502890174 x 100 = 63.58%