52.25% is the change from 645 to 982
Calculation steps:
[( 982 - 645 ) ÷ 645] x 100 = 52.25%
Formula
Percentage change = [(982 - 645) / 645] x 100
Subtract the new number by the original number
982 - 645 = 337
337 ÷ 645 = 0.5224806201550387
0.5224806201550387 x 100 = 52.25%