64.14% is the change from 343 to 563
Calculation steps:
[( 563 - 343 ) ÷ 343] x 100 = 64.14%
Formula
Percentage change = [(563 - 343) / 343] x 100
Subtract the new number by the original number
563 - 343 = 220
220 ÷ 343 = 0.641399416909621
0.641399416909621 x 100 = 64.14%