-38.1% is the change from 210 to 130
Calculation steps:
[( 130 - 210 ) ÷ 210] x 100 = -38.1%
Formula
Percentage change = [(130 - 210) / 210] x 100
Subtract the new number by the original number
130 - 210 = -80
-80 ÷ 210 = -0.38095238095238093
-0.38095238095238093 x 100 = -38.1%