67.54% is the change from 382 to 640
Calculation steps:
[( 640 - 382 ) ÷ 382] x 100 = 67.54%
Formula
Percentage change = [(640 - 382) / 382] x 100
Subtract the new number by the original number
640 - 382 = 258
258 ÷ 382 = 0.675392670157068
0.675392670157068 x 100 = 67.54%