69.47% is the change from 380 to 644
Calculation steps:
[( 644 - 380 ) ÷ 380] x 100 = 69.47%
Formula
Percentage change = [(644 - 380) / 380] x 100
Subtract the new number by the original number
644 - 380 = 264
264 ÷ 380 = 0.6947368421052632
0.6947368421052632 x 100 = 69.47%