64.52% is the change from 341 to 561
Calculation steps:
[( 561 - 341 ) ÷ 341] x 100 = 64.52%
Formula
Percentage change = [(561 - 341) / 341] x 100
Subtract the new number by the original number
561 - 341 = 220
220 ÷ 341 = 0.6451612903225806
0.6451612903225806 x 100 = 64.52%