84.35% is the change from 345 to 636
Calculation steps:
[( 636 - 345 ) ÷ 345] x 100 = 84.35%
Formula
Percentage change = [(636 - 345) / 345] x 100
Subtract the new number by the original number
636 - 345 = 291
291 ÷ 345 = 0.8434782608695652
0.8434782608695652 x 100 = 84.35%