69.13% is the change from 447 to 756
Calculation steps:
[( 756 - 447 ) ÷ 447] x 100 = 69.13%
Formula
Percentage change = [(756 - 447) / 447] x 100
Subtract the new number by the original number
756 - 447 = 309
309 ÷ 447 = 0.6912751677852349
0.6912751677852349 x 100 = 69.13%