191.46% is the change from 316 to 921
Calculation steps:
[( 921 - 316 ) ÷ 316] x 100 = 191.46%
Formula
Percentage change = [(921 - 316) / 316] x 100
Subtract the new number by the original number
921 - 316 = 605
605 ÷ 316 = 1.9145569620253164
1.9145569620253164 x 100 = 191.46%