-15.04% is the change from 964 to 819
Calculation steps:
[( 819 - 964 ) ÷ 964] x 100 = -15.04%
Formula
Percentage change = [(819 - 964) / 964] x 100
Subtract the new number by the original number
819 - 964 = -145
-145 ÷ 964 = -0.1504149377593361
-0.1504149377593361 x 100 = -15.04%