62.94% is the change from 340 to 554
Calculation steps:
[( 554 - 340 ) ÷ 340] x 100 = 62.94%
Formula
Percentage change = [(554 - 340) / 340] x 100
Subtract the new number by the original number
554 - 340 = 214
214 ÷ 340 = 0.6294117647058823
0.6294117647058823 x 100 = 62.94%