-78.35% is the change from 970 to 210
Calculation steps:
[( 210 - 970 ) ÷ 970] x 100 = -78.35%
Formula
Percentage change = [(210 - 970) / 970] x 100
Subtract the new number by the original number
210 - 970 = -760
-760 ÷ 970 = -0.7835051546391752
-0.7835051546391752 x 100 = -78.35%