-67.18% is the change from 195 to 64
Calculation steps:
[( 64 - 195 ) ÷ 195] x 100 = -67.18%
Formula
Percentage change = [(64 - 195) / 195] x 100
Subtract the new number by the original number
64 - 195 = -131
-131 ÷ 195 = -0.6717948717948717
-0.6717948717948717 x 100 = -67.18%