379.69% is the change from 64 to 307
Calculation steps:
[( 307 - 64 ) ÷ 64] x 100 = 379.69%
Formula
Percentage change = [(307 - 64) / 64] x 100
Subtract the new number by the original number
307 - 64 = 243
243 ÷ 64 = 3.796875
3.796875 x 100 = 379.69%