880.3% is the change from 66 to 647
Calculation steps:
[( 647 - 66 ) ÷ 66] x 100 = 880.3%
Formula
Percentage change = [(647 - 66) / 66] x 100
Subtract the new number by the original number
647 - 66 = 581
581 ÷ 66 = 8.803030303030303
8.803030303030303 x 100 = 880.3%