9.3% is the change from 645 to 705
Calculation steps:
[( 705 - 645 ) ÷ 645] x 100 = 9.3%
Formula
Percentage change = [(705 - 645) / 645] x 100
Subtract the new number by the original number
705 - 645 = 60
60 ÷ 645 = 0.09302325581395349
0.09302325581395349 x 100 = 9.3%