400% is the change from 189 to 945
Calculation steps:
[( 945 - 189 ) ÷ 189] x 100 = 400%
Formula
Percentage change = [(945 - 189) / 189] x 100
Subtract the new number by the original number
945 - 189 = 756
756 ÷ 189 = 4
4 x 100 = 400%
Example