645.65% is the change from 46 to 343
Calculation steps:
[( 343 - 46 ) ÷ 46] x 100 = 645.65%
Formula
Percentage change = [(343 - 46) / 46] x 100
Subtract the new number by the original number
343 - 46 = 297
297 ÷ 46 = 6.456521739130435
6.456521739130435 x 100 = 645.65%