802.63% is the change from 38 to 343
Calculation steps:
[( 343 - 38 ) ÷ 38] x 100 = 802.63%
Formula
Percentage change = [(343 - 38) / 38] x 100
Subtract the new number by the original number
343 - 38 = 305
305 ÷ 38 = 8.026315789473685
8.026315789473685 x 100 = 802.63%