-80.1% is the change from 970 to 193
Calculation steps:
[( 193 - 970 ) ÷ 970] x 100 = -80.1%
Formula
Percentage change = [(193 - 970) / 970] x 100
Subtract the new number by the original number
193 - 970 = -777
-777 ÷ 970 = -0.8010309278350516
-0.8010309278350516 x 100 = -80.1%