191.55% is the change from 343 to 1000
Calculation steps:
[( 1000 - 343 ) ÷ 343] x 100 = 191.55%
Formula
Percentage change = [(1000 - 343) / 343] x 100
Subtract the new number by the original number
1000 - 343 = 657
657 ÷ 343 = 1.9154518950437318
1.9154518950437318 x 100 = 191.55%