181.47% is the change from 340 to 957
Calculation steps:
[( 957 - 340 ) ÷ 340] x 100 = 181.47%
Formula
Percentage change = [(957 - 340) / 340] x 100
Subtract the new number by the original number
957 - 340 = 617
617 ÷ 340 = 1.8147058823529412
1.8147058823529412 x 100 = 181.47%