149.12% is the change from 342 to 852
Calculation steps:
[( 852 - 342 ) ÷ 342] x 100 = 149.12%
Formula
Percentage change = [(852 - 342) / 342] x 100
Subtract the new number by the original number
852 - 342 = 510
510 ÷ 342 = 1.4912280701754386
1.4912280701754386 x 100 = 149.12%