16525% is the change from 4 to 665
Calculation steps:
[( 665 - 4 ) ÷ 4] x 100 = 16525%
Formula
Percentage change = [(665 - 4) / 4] x 100
Subtract the new number by the original number
665 - 4 = 661
661 ÷ 4 = 165.25
165.25 x 100 = 16525%
Example