-89.43% is the change from 662 to 70
Calculation steps:
[( 70 - 662 ) ÷ 662] x 100 = -89.43%
Formula
Percentage change = [(70 - 662) / 662] x 100
Subtract the new number by the original number
70 - 662 = -592
-592 ÷ 662 = -0.8942598187311178
-0.8942598187311178 x 100 = -89.43%