170.09% is the change from 341 to 921
Calculation steps:
[( 921 - 341 ) ÷ 341] x 100 = 170.09%
Formula
Percentage change = [(921 - 341) / 341] x 100
Subtract the new number by the original number
921 - 341 = 580
580 ÷ 341 = 1.7008797653958945
1.7008797653958945 x 100 = 170.09%