1263.64% is the change from 66 to 900
Calculation steps:
[( 900 - 66 ) ÷ 66] x 100 = 1263.64%
Formula
Percentage change = [(900 - 66) / 66] x 100
Subtract the new number by the original number
900 - 66 = 834
834 ÷ 66 = 12.636363636363637
12.636363636363637 x 100 = 1263.64%