-79.1% is the change from 335 to 70
Calculation steps:
[( 70 - 335 ) ÷ 335] x 100 = -79.1%
Formula
Percentage change = [(70 - 335) / 335] x 100
Subtract the new number by the original number
70 - 335 = -265
-265 ÷ 335 = -0.7910447761194029
-0.7910447761194029 x 100 = -79.1%