-1.05% is the change from 669 to 662
Calculation steps:
[( 662 - 669 ) ÷ 669] x 100 = -1.05%
Formula
Percentage change = [(662 - 669) / 669] x 100
Subtract the new number by the original number
662 - 669 = -7
-7 ÷ 669 = -0.01046337817638266
-0.01046337817638266 x 100 = -1.05%