121.6% is the change from 287 to 636
Calculation steps:
[( 636 - 287 ) ÷ 287] x 100 = 121.6%
Formula
Percentage change = [(636 - 287) / 287] x 100
Subtract the new number by the original number
636 - 287 = 349
349 ÷ 287 = 1.21602787456446
1.21602787456446 x 100 = 121.6%