1960% is the change from 40 to 824
Calculation steps:
[( 824 - 40 ) ÷ 40] x 100 = 1960%
Formula
Percentage change = [(824 - 40) / 40] x 100
Subtract the new number by the original number
824 - 40 = 784
784 ÷ 40 = 19.6
19.6 x 100 = 1960%
Example