850% is the change from 66 to 627
Calculation steps:
[( 627 - 66 ) ÷ 66] x 100 = 850%
Formula
Percentage change = [(627 - 66) / 66] x 100
Subtract the new number by the original number
627 - 66 = 561
561 ÷ 66 = 8.5
8.5 x 100 = 850%
Example