9770% is the change from 10 to 987
Calculation steps:
[( 987 - 10 ) ÷ 10] x 100 = 9770%
Formula
Percentage change = [(987 - 10) / 10] x 100
Subtract the new number by the original number
987 - 10 = 977
977 ÷ 10 = 97.7
97.7 x 100 = 9770%
Example