187.81% is the change from 320 to 921
Calculation steps:
[( 921 - 320 ) ÷ 320] x 100 = 187.81%
Formula
Percentage change = [(921 - 320) / 320] x 100
Subtract the new number by the original number
921 - 320 = 601
601 ÷ 320 = 1.878125
1.878125 x 100 = 187.81%