1740% is the change from 45 to 828
Calculation steps:
[( 828 - 45 ) ÷ 45] x 100 = 1740%
Formula
Percentage change = [(828 - 45) / 45] x 100
Subtract the new number by the original number
828 - 45 = 783
783 ÷ 45 = 17.4
17.4 x 100 = 1740%
Example