186.47% is the change from 340 to 974
Calculation steps:
[( 974 - 340 ) ÷ 340] x 100 = 186.47%
Formula
Percentage change = [(974 - 340) / 340] x 100
Subtract the new number by the original number
974 - 340 = 634
634 ÷ 340 = 1.8647058823529412
1.8647058823529412 x 100 = 186.47%