645% is the change from 60 to 447
Calculation steps:
[( 447 - 60 ) ÷ 60] x 100 = 645%
Formula
Percentage change = [(447 - 60) / 60] x 100
Subtract the new number by the original number
447 - 60 = 387
387 ÷ 60 = 6.45
6.45 x 100 = 645%
Example