6213.33% is the change from 15 to 947
Calculation steps:
[( 947 - 15 ) ÷ 15] x 100 = 6213.33%
Formula
Percentage change = [(947 - 15) / 15] x 100
Subtract the new number by the original number
947 - 15 = 932
932 ÷ 15 = 62.13333333333333
62.13333333333333 x 100 = 6213.33%