49.61% is the change from 641 to 959
Calculation steps:
[( 959 - 641 ) ÷ 641] x 100 = 49.61%
Formula
Percentage change = [(959 - 641) / 641] x 100
Subtract the new number by the original number
959 - 641 = 318
318 ÷ 641 = 0.4960998439937597
0.4960998439937597 x 100 = 49.61%