1063.86% is the change from 83 to 966
Calculation steps:
[( 966 - 83 ) ÷ 83] x 100 = 1063.86%
Formula
Percentage change = [(966 - 83) / 83] x 100
Subtract the new number by the original number
966 - 83 = 883
883 ÷ 83 = 10.63855421686747
10.63855421686747 x 100 = 1063.86%