53.02% is the change from 645 to 987
Calculation steps:
[( 987 - 645 ) ÷ 645] x 100 = 53.02%
Formula
Percentage change = [(987 - 645) / 645] x 100
Subtract the new number by the original number
987 - 645 = 342
342 ÷ 645 = 0.5302325581395348
0.5302325581395348 x 100 = 53.02%