103.44% is the change from 320 to 651
Calculation steps:
[( 651 - 320 ) ÷ 320] x 100 = 103.44%
Formula
Percentage change = [(651 - 320) / 320] x 100
Subtract the new number by the original number
651 - 320 = 331
331 ÷ 320 = 1.034375
1.034375 x 100 = 103.44%