1790% is the change from 50 to 945
Calculation steps:
[( 945 - 50 ) ÷ 50] x 100 = 1790%
Formula
Percentage change = [(945 - 50) / 50] x 100
Subtract the new number by the original number
945 - 50 = 895
895 ÷ 50 = 17.9
17.9 x 100 = 1790%
Example