91.96% is the change from 336 to 645
Calculation steps:
[( 645 - 336 ) ÷ 336] x 100 = 91.96%
Formula
Percentage change = [(645 - 336) / 336] x 100
Subtract the new number by the original number
645 - 336 = 309
309 ÷ 336 = 0.9196428571428571
0.9196428571428571 x 100 = 91.96%