32.94% is the change from 343 to 456
Calculation steps:
[( 456 - 343 ) ÷ 343] x 100 = 32.94%
Formula
Percentage change = [(456 - 343) / 343] x 100
Subtract the new number by the original number
456 - 343 = 113
113 ÷ 343 = 0.3294460641399417
0.3294460641399417 x 100 = 32.94%