178.53% is the change from 340 to 947
Calculation steps:
[( 947 - 340 ) ÷ 340] x 100 = 178.53%
Formula
Percentage change = [(947 - 340) / 340] x 100
Subtract the new number by the original number
947 - 340 = 607
607 ÷ 340 = 1.785294117647059
1.785294117647059 x 100 = 178.53%