-70.01% is the change from 817 to 245
Calculation steps:
[( 245 - 817 ) ÷ 817] x 100 = -70.01%
Formula
Percentage change = [(245 - 817) / 817] x 100
Subtract the new number by the original number
245 - 817 = -572
-572 ÷ 817 = -0.7001223990208079
-0.7001223990208079 x 100 = -70.01%