-70% is the change from 200 to 60
Calculation steps:
[( 60 - 200 ) ÷ 200] x 100 = -70%
Formula
Percentage change = [(60 - 200) / 200] x 100
Subtract the new number by the original number
60 - 200 = -140
-140 ÷ 200 = -0.7
-0.7 x 100 = -70%
Example