63.97% is the change from 247 to 405
Calculation steps:
[( 405 - 247 ) ÷ 247] x 100 = 63.97%
Formula
Percentage change = [(405 - 247) / 247] x 100
Subtract the new number by the original number
405 - 247 = 158
158 ÷ 247 = 0.6396761133603239
0.6396761133603239 x 100 = 63.97%