89.61% is the change from 337 to 639
Calculation steps:
[( 639 - 337 ) ÷ 337] x 100 = 89.61%
Formula
Percentage change = [(639 - 337) / 337] x 100
Subtract the new number by the original number
639 - 337 = 302
302 ÷ 337 = 0.8961424332344213
0.8961424332344213 x 100 = 89.61%