85.06% is the change from 348 to 644
Calculation steps:
[( 644 - 348 ) ÷ 348] x 100 = 85.06%
Formula
Percentage change = [(644 - 348) / 348] x 100
Subtract the new number by the original number
644 - 348 = 296
296 ÷ 348 = 0.8505747126436781
0.8505747126436781 x 100 = 85.06%