53.19% is the change from 643 to 985
Calculation steps:
[( 985 - 643 ) ÷ 643] x 100 = 53.19%
Formula
Percentage change = [(985 - 643) / 643] x 100
Subtract the new number by the original number
985 - 643 = 342
342 ÷ 643 = 0.5318818040435459
0.5318818040435459 x 100 = 53.19%