-66.14% is the change from 189 to 64
Calculation steps:
[( 64 - 189 ) ÷ 189] x 100 = -66.14%
Formula
Percentage change = [(64 - 189) / 189] x 100
Subtract the new number by the original number
64 - 189 = -125
-125 ÷ 189 = -0.6613756613756614
-0.6613756613756614 x 100 = -66.14%