83.67% is the change from 343 to 630
Calculation steps:
[( 630 - 343 ) ÷ 343] x 100 = 83.67%
Formula
Percentage change = [(630 - 343) / 343] x 100
Subtract the new number by the original number
630 - 343 = 287
287 ÷ 343 = 0.8367346938775511
0.8367346938775511 x 100 = 83.67%