136.3% is the change from 146 to 345
Calculation steps:
[( 345 - 146 ) ÷ 146] x 100 = 136.3%
Formula
Percentage change = [(345 - 146) / 146] x 100
Subtract the new number by the original number
345 - 146 = 199
199 ÷ 146 = 1.3630136986301369
1.3630136986301369 x 100 = 136.3%