145.8% is the change from 345 to 848
Calculation steps:
[( 848 - 345 ) ÷ 345] x 100 = 145.8%
Formula
Percentage change = [(848 - 345) / 345] x 100
Subtract the new number by the original number
848 - 345 = 503
503 ÷ 345 = 1.4579710144927536
1.4579710144927536 x 100 = 145.8%