39.61% is the change from 462 to 645
Calculation steps:
[( 645 - 462 ) ÷ 462] x 100 = 39.61%
Formula
Percentage change = [(645 - 462) / 462] x 100
Subtract the new number by the original number
645 - 462 = 183
183 ÷ 462 = 0.3961038961038961
0.3961038961038961 x 100 = 39.61%