44.8% is the change from 442 to 640
Calculation steps:
[( 640 - 442 ) ÷ 442] x 100 = 44.8%
Formula
Percentage change = [(640 - 442) / 442] x 100
Subtract the new number by the original number
640 - 442 = 198
198 ÷ 442 = 0.4479638009049774
0.4479638009049774 x 100 = 44.8%