-33.06% is the change from 962 to 644
Calculation steps:
[( 644 - 962 ) ÷ 962] x 100 = -33.06%
Formula
Percentage change = [(644 - 962) / 962] x 100
Subtract the new number by the original number
644 - 962 = -318
-318 ÷ 962 = -0.3305613305613306
-0.3305613305613306 x 100 = -33.06%