-69.05% is the change from 210 to 65
Calculation steps:
[( 65 - 210 ) ÷ 210] x 100 = -69.05%
Formula
Percentage change = [(65 - 210) / 210] x 100
Subtract the new number by the original number
65 - 210 = -145
-145 ÷ 210 = -0.6904761904761905
-0.6904761904761905 x 100 = -69.05%