148.69% is the change from 343 to 853
Calculation steps:
[( 853 - 343 ) ÷ 343] x 100 = 148.69%
Formula
Percentage change = [(853 - 343) / 343] x 100
Subtract the new number by the original number
853 - 343 = 510
510 ÷ 343 = 1.4868804664723032
1.4868804664723032 x 100 = 148.69%