-14.85% is the change from 963 to 820
Calculation steps:
[( 820 - 963 ) ÷ 963] x 100 = -14.85%
Formula
Percentage change = [(820 - 963) / 963] x 100
Subtract the new number by the original number
820 - 963 = -143
-143 ÷ 963 = -0.14849428868120457
-0.14849428868120457 x 100 = -14.85%