1700% is the change from 27 to 486
Calculation steps:
[( 486 - 27 ) ÷ 27] x 100 = 1700%
Formula
Percentage change = [(486 - 27) / 27] x 100
Subtract the new number by the original number
486 - 27 = 459
459 ÷ 27 = 17
17 x 100 = 1700%
Example