6200% is the change from 15 to 945
Calculation steps:
[( 945 - 15 ) ÷ 15] x 100 = 6200%
Formula
Percentage change = [(945 - 15) / 15] x 100
Subtract the new number by the original number
945 - 15 = 930
930 ÷ 15 = 62
62 x 100 = 6200%
Example