820% is the change from 45 to 414
Calculation steps:
[( 414 - 45 ) ÷ 45] x 100 = 820%
Formula
Percentage change = [(414 - 45) / 45] x 100
Subtract the new number by the original number
414 - 45 = 369
369 ÷ 45 = 8.2
8.2 x 100 = 820%
Example